My pc is pretty weak by today's standarts (1gb low frequency RAM, 6200 geforce i.e.), but I still don't get why does my LoL client lag so much.
Game runs fine in low settings, I don't get any lags whatsoever, but when I am opening rune pages/champion selection/Masteries, it takes a while to load.
I also noticed LoL client uses 90-100% of my CPU when I have it opened (I suppose that is the reason for these lags)
However, if I minimize LoL client, CPU usage drops down to normal.
Anyone knows what could be happening?