By the way, I noticed that your website loads very slowly, so you might want to take note of that as well.
There are some online tools that can help you identify the cause of the problem, such as
GTmetrix or
Google PageSpeed Insights.
Usually, that is related to the code and image because sometimes, if the image has a big or medium size, that can make the site load slowly. @OP can start checking his site, all of the pages on his site using the online tools to know what needs to be fixed.
SEMRush is a good online tool to check his website performance and I suggest he use the paid service as the paid service gives everything he needs. Or, if he has a team capable of checking the website performance, he can ask them to check it and fix it.
Really sucks when you do access a site which is very slow to load up in terms of images or the entire interface even though you do have fast internet which is actually a huge turn off for those people who are tending to access the site which means that they would really be needing to fix it first before
making some full offering or launch in the market so that it would really be able to avoid those criticisms but its good that theres a community
which could really make out some test and make out some suggestions via those complaints.