Nightmare using with TOR. The ALL in one page option also takes too long to load and Cloudflare is also in action. I used to use the forum from clear net and this could be the reason I did not have such problem before.
I think it is a problem related to your browser more than being server side, access to the forum using TOR is bad but it takes an average
one minute or two, maybe you need to restart your device and delete some cookies.
Overall, bypass captcha will help you to avoid a lot of headaches, I used a lot and I did not have any problem.