Website speed can affect ads because it can cause a higher bounce rate (this means people might be more likely to click on an ad, get impatient while waiting for the page to load, and close the tab). It usually isn’t an urgent issue because it doesn’t make a huge impact, but if you are wondering whether your website is fast enough, here is what you can do:
Use this website speed analyzer tool.
Enter your website URL.
Pick a server closest to you.
Click "Start Test"
Once you get the result, look at the Load Time. If it is less than 2 seconds, then you are all set! We have found the conversion rate is unaffected as long as the website loads in 2 seconds or less. If it is more than 2 seconds, contact your developer to see what can be done to speed things up.