Summoners Rift Click/Chat/Ability delay bug

I've recently been having issues on basically everything I do in game, mostly right clicking is the issue. 80% of my clicks and abilities will register perfectly, but the other 20% of the time they do not render and i end up moving aimlessly or not at all. Same thing with the abilities issue. I would use an ability and 3 seconds later it will randomly happen. The click to move green icon will appear but I won't be able to move. I have never had this issue and I've been playing for years. I tried it out on ARAM and everything ran perfectly smooth. Sometimes my chat message will not appear until 4 seconds after I type it in. This seems to only be a problem on Summoners Rift. I'm guessing I should reinstall but one game I asked if anyone was having this issue and someone else on the other team did, so I'm thinking its fairly widespread.