A lot of times I see problems like this. Especially when too much of users start posting on the forum together. like when bounty manager Bounty Detective post a campaign then many bounty hunters start POA posting together. And then there is such an effect on the whole forum. I could not login my account for this problem yesterday. And I've heard it happened to a few more people. what wrong with Bitcointalk? it is happen for low configuration hosting server? Or is this the problem with my smartphone?
This should not happen unless you are opening / reloading a lot of tabs together and refreshing bitcointalk pages many times simultaneously.
The more concerning thing is that you have written that you face this problem often. Try to open only a single bitcointalk page at a time and see if the situation improves ? Did changing the internet connection helps ? (connect with mobile hotspot if you do not have extra internet connection)