For the last day or two the BHF has often been slow to appear on screen with the 'time out-too long to respond' message showing. I have no similar problems with other websites. When it happens I have tried immediately opening the forum's Image Host (Coppermine) in a separate tab and the same problem often appears there. The problem goes away for a time but is happening often enough to make me notice. It occurs with Chrome, Edge, IE11, and also with Safari on an iPad. I've tried all the usual cache clearing, network diagnostics etc and results indicate that my system and devices are ok.
It's not a big problem for me, I have been waiting to see if anyone has had similar problems and it seems they have. I don't have any problem staying logged in I just have to wait for the site to open.