Slow client issues

Alright, so I recently installed league after not having a PC for forever, and whenever I press the play button or try to leave the end game summary screen it always takes way too long than usual to go to the next screen and it seems like it is trying to catch-up because it loads up too many things. Anyone ever had anything similar happen to them, i'm starting to think it is a PC issue or file location problem, but it could just be league or my connection while on client because in-game my connection is fine. Help me out my dudes.
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