Client Crash

So lately I have been having fps problems and spikes in games and sometimes it would cause me to not connect to the game for some time. Recently i Went through a huge fps spike then client crash leading me to have to relog (around the time when the home page was changed). I relog and try to reconnect but i couldn't even do that. Now I have been put into low priority queue cause of the client crash. I have never left a game deliberately nor would i ever do so. Can i please get some help or maybe some advice as to what i can do to limit these spikes and crashes