I still can't say for sure if this is the cause, but I was online two nights ago during the day (when this became really bad for me) yet when it turned about 4-5 in the morning(GMT+0) it all went away and i was 100% fine, i tryed going to pvp,skellington,prison and pront. All was fine.
It seems likely thats to do with the amount of people online, I'll do the same test again maybe tonight or another night and see if it fixes itself in the same way, if it does then its obvious that its the servers problem, if not then it was a random occurance and the problem still is an X factor.