I think ask of these problems are why we have been asked to find CB a new home.
I frequently get problems at my end. Pages don't load, avatars don't fill themselves in, forget pictures they frequently don't happen.
On the new server, our speed may or may not improve. It will really depends on how much we pay for. I'm still trying to find a good deal. I'm hoping we will be on with what I find but tbh, I have no way of knowing.
Certain times of day will be worse than others. I'm not certain what time the backup kicks off on the CycleChat server but that does impact speed considerably and higher resolution, large pixel images and the more of them per page is always going to slow loading down.
When the UK is normally asleep, and by which I mean after midnight and after the backup ends, will be the fastest time for accessing the server because it is hosted in the UK, something I'm looking at continuing with.