I'm really sorry you're having this
@Redheaddegu and we can try and sort it out by a process of elimination maybe

Here are a few things to check
1) Try restarting the device (which you've probably tried)
2) Do you have a good internet connection or is it a bit weak?
3) Apparently there is a setting called low data mode - Settings - cellular - cellular data options - check that low data mode is disabled.
4) Also try clearing cookies and cache on the device.
5) Check you're running the latest ios version (ie it might need updating if automatic updates are turned off).
6) Are you using a VPN? (Virtual private network) - that can cause this too.
If your iphone and ipad are only a few years old, it shouldn't be that. If they were 10 years old it might be that. But with both you could just install Firefox web browser and see if it makes a difference

However that could be annoying if you're used to just using the built in web browser.
Do you know what model of iphone it is and I could look into it a bit more
Also, is it all images in the forum, or just some, and it does it affect home page/articles photos as well please

It might help me work out if certain image formats are involved
However, I'm not ruling out a web server issue either, so if anyone else is having the same thing, can you let me know? I use a fairly basic iphone and haven't had an issue, and also use Windows 11 without having an issue.
@Lovelyness what device did it happen on for you? I need to narrow down if it's device specific or an intermittent thing related to server side.