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Why your Facebook Ads Performance Might be Declining

Facebook Analytics
Siddharth Dwivedi May 17, 2024

The chances are you haven’t been able to diagnose the reason for Facebook Ads not performing or planning before reading this article.

All you know is that showing an ad 10 times over and still not getting a favorable response means you need to take action.  If your Facebook ads not performing well, you’ll wonder how to improve them. 

Do you need to update your ads? Or do you need to come up with a new target audience? Maybe try a new value proposition?

Let’s start with a basic pro tip:

If there is a sudden unexpected drop in your ad performance, always start by checking if your Facebook pixels and events are firing correctly.

Sometimes web development teams forget to place them back in their place during a website update. That’s why it’s recommended to use Google Tag Manager for setting up Facebook pixel and conversions

You can do this check using Facebook Pixel Helper plugin for Google Chrome. 

Facebook Pixel Helper

Sometimes the decline in Facebook Ads performance can be diagnosed quickly. But you must have processes set up in your marketing team or your agency team to approach Facebook Ads performance drops in your Facebook Ad account.

Let’s put forth some scenarios in front of you, and see if you relate any of them with your current declining Ads performance.

Ad fatigue: Your audience starts suffering from ‘banner blindness’

First of all, you need to be certain that the Facebook ads not performing because of Ad fatigue.

Here’s the science behind why it happens.

People tend to have selective attention. If they start focusing on everything or a similar thing, again and again, they will be overloaded with information. Essentially, a human brain is designed to focus only on what matters immediately.

In terms of a website or an app, people tend to focus only on what matters ignoring elements and information that they perceive as ads. This is popularly known as banner blindness or ad blindness.

banner blindness in fb ads

In the context of Facebook Ads, it simply means people have started ignoring your ads. And you need to fix it.

First of all, you need to be certain that the Facebook ads performance drop is because of Ad fatigue. If you notice these two happening together, chances are Ad fatigue is the reason for Facebook Ads not performing:

  • A gradual increase in cost per click over some time
  • A comparable gradual decrease in CTR on ads that were doing amazing a week or a month back

To fix ad fatigue, start looking at the ads that are causing the most drops in CTR, high CPC, and high frequency.

This analysis helps determine which of your ads your audience is starting to ignore. You can also use the Free Facebook ads analysis tool to optimize Facebook ads.

A few things you can do to remedy ad fatigue are:

  • Try new ad copies.
  • Try new creatives.
  • Try different ad formats: image, video, carousel, instant experience, or collection.
  • Run A/B testing on your creative communication and see what works best.

If you are an eCommerce brand, here are three tips that you should test to Facebook ads declining:

  • Change your creative from a single image to a carousel ad format.
  • Turn your product images into a slideshow video.
  • Use video creative instead of images.

Don’t be too quick in changing and optimizing your campaigns though.

Facebook’s algorithm requires at least 50 conversions per ad set to get through the learning phase and give the best results.

Audience saturation: Your ads are gradually not reaching a new set of people.

Audience saturation happens when a large percentage of ad impressions are coming from people who have already seen your ad. Or, to put it another way, your ads are not being shown to new people.

You can measure it with frequency. It’s a measure of how many times a person has seen your ad.

A high frequency of ad visibility does increase awareness and brand recall, but when your objective is conversion, you don’t want high frequency. When your audience stops responding to your ads, it leads to diminishing returns and FB ads performance drop because there is no intent of conversion.

Here are the metrics that will help you diagnose your ad sets for audience saturation:

  • Frequency (Lifetime): The average number of times that each person saw your ad over the lifetime of your campaign.
  • First-Time Impression Ratio: The percentage of your daily impressions that come from people seeing your ad set for the first time.
  • Reach (Lifetime): The number of people who saw your ads at least once over the lifetime of your campaign.
  • Audience Reached Ratio: The percentage of your estimated audience size that you’ve reached so far.

You can check these metrics in the Delivery Insights section of an ad set.

delivery insights section for facebook

When you know you have exhausted and saturated your current audiences,  If your Facebook ads not performing, what other best practices can you implement?

When you know you have exhausted and saturated your current audiences, what other best practices can you implement how to improve Facebook Ads performance? 

  • Expand your current audiences: Keep your targeting intact but increase your audience base by 1M+.
  • Try new audiences. Try using different types of audiences. For, e.g., You might be focusing on shopping patterns and could change it to income levels.
  • Try Alternate audiences. Take a break from targeting an audience and sequence it on a bi-monthly basis.

Competition: Has it increased?

Facebook marketing does not discriminate between small or big businesses (not as much at least), but one thing that most marketers don’t account for is competitors targeting the same audiences.

If you’re running Google Ads, it does tell you how you rank against your competitors and it does tell you who gets in the first position. However, in Facebook Ads, it’s difficult to do competitive analysis.

Plus, if you’re trying to show an ad for, let’s say, a t-shirt, you may also be competing against another advertiser who is trying to show an ad for a fitness plan.

It’s like you’re competing against all the advertisers for one-person attention.

So, how do you figure out if increasing competition is the reason for Facebook Ads not performing?

As a matter of fact, Facebook does provide you with an interesting chart.

Auction competition.

what is auction competition in facebook ads
auction competition graph for fb ads

This is how Facebook explains it:

For example, a data point of 5% means that competition for that day is 5% higher than average for your selected period. As a reference, a data point of 20% indicates high competition, while a data point of -20% indicates low competition.

According to Facebook, data points between -20% and 20% should be considered stable.

That means if you see the data point in the auction competition graph exceeds 20%, it means the competition is rising. If you see this happening for 3-4 days consecutively, you need to change your approach.

One way to solve this is by running ads for a different objective. If it’s not something that you can do, try going to new audiences and returning to the same audience after a while.

Essentially, auction competition is also an indicator of CPM. That is, high auction competition would usually mean high CPM. So, to make up for it, you can try creating ads for high CTR.

Another way to optimize Facebook Ads declining due to auction competition is by Trying new offers and conversations. How much you can experiment depends on your category, the size of the business, and your competitors’ performance.

Facebook Algorithm: Check for updates every few months

Facebook Algorithm is like a black box that no one has access to. Marketers know now that there have been around 6-7 major algorithm changes and some minor ones every few months; but how can they decline your ad performance?

The game-changing news-feed ‘sorting order’ a.k.a. algorithm was introduced in 2009. The objective of the algorithm was always to show the right type of content to the right audience. This was done to maximize the amount of time people spend on Facebook as a platform.

Soon pages that posted high amounts of promotional content (organic content which had ad-driven content) were downranked, and their engagement rates reduced drastically. Between 2015 to 2018, organic reach for branded content decreased from 5.4% to 1.2%. 

Now let’s try to understand what Facebook looks at when it evaluates your ads:

  • Facebook ranking signals help bucket your audience and your page performance by considering the following along with other variables:
    1. Who a user typically interacts with?
    2. The type of media in your post. For instance, video, link, photo, etc.
    3. The popularity of your brand posts
  • The Facebook metric for understanding how your target audience responds to your ad is a relevancy score. The three metrics for determining your relevancy score are:
    1. Quality Ranking – Your ads perceived quality. Measured by ads post-click experience
    2. Conversion Rate Ranking – Your ads conversion rate. Measured by conversions (via pixels)
    3. Engagement Rate Ranking – Your ads engagement level. Measured by likes, comments, clicks, and shares

Note: Your relevance score takes time to be determined. 

Another metric that Facebook uses to determine your ad performance and credibility is User Value. Facebook measures the actions users take AFTER they interact with your ad.

When an advertiser runs misleading ads or ads with clickbait, the negative feedback by your audience is recorded, which in turn down-ranks your page and ads in the Facebook universe. A way to avoid this is by ensuring that your landing page communicates exactly what your ad promised. Have the same synergies in terms of colors, communication, branding, and language.

Ads need to be updated: Some of them eventually stop performing.

Facebook prides itself on offering the best user experience it can, and if your low-quality ad affects that, don’t you think the platform will push your ad back, you know, for their audience (and decline time spent on the app)? 

Facebook’s ad system is designed to maximize value for people and businesses alike. Hence, they conduct research and analyze feedback from their community to understand what attributes of your ads are low-quality.

Below are some of the attributes of low-quality ads, If any of the below-mentioned points tick any boxes, it’s time you course correct and improve your Facebook ads for better results.

  • Text in ad image: Facebook has strict guidelines in terms of the text on your ad creative or the video thumbnail. If your creative has more than 20% space with copy on it (the 20% rule), there is a high probability your campaign won’t even run. It surely affects the quality score of your ad.
  • Withholding information: Facebook has a clear disruptive content policy, and sometimes you might violate it without even knowing.
  • Sensationalized language: Exaggerated headlines and setting unreasonable expectations are now being recorded by introducing surveys to understand user experience with your ad.
  • Quality of landing page: If your landing page is not functional, has adult content, or controversial content, Facebook would consider that exploitation of their Community Standards and Advertising Policies.
  • Misleading content on the landing page: If your landing page has or does any of the following, which not only affects user experience but exposes them to misleading content, Facebook can reduce your ad exposure and increase your CPA. Below are some things that would affect your user value score drastically –
    • Lack of substantive or original content
    • Pop-up ads or interstitial ads
    • Unexpected content experiences
    • Having a high ratio of ads relative to the content on your landing page

To Wrap it up.

As algorithms and features evolve, so do consumer behavior and expectations. Facebook is a place a huge fare where your chances of success improve if you’re able to bring your users’ attention to you. It is imperative for you as a brand to elevate individual user content and experience instead of run-of-the-mill branded content. 

Now that you know some trade secrets start by setting a reporting system for yourself.  Conduct weekly reviews. Take the right call at the right time, and get to a point where you can shorten the conversion journey of your audience without letting your ad performance drop!

Is there anything else you think might cause a decline in FB ads performance? Write it down in the comments below and I will add it to the list.

About the Author

Siddharth Dwivedi

Siddharth Dwivedi

Siddharth built two bootstrapped companies from the ground up: Vaizle and XOR Labs. He’s personally managed over Rs 100cr in ad budget across eCommerce, D2C, ed-tech, and health-tech segments. Apart from being a full-time marketer, he loves taking on the challenges of finance and operations. When not staring at his laptop, you’ll find him reading books or playing football on weekends.

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