Random framedrops issue while playing or spectating

I have random framedrops .When it happens it stays like that for the whole game/match/spectate. The menus are not affected by that framedrop issue.I have to play different games or wait to fix it. That never happened before except for the kingsbane matchups /jade druid… ( you never fixed that by the way ). I already made topics about this and some other glitches ruining the experience but nobody answered. Help please ! I’m on pc , windows 7. Your balance update didn’t fix this. It’s infuriating how many topics I have to create to get an answer !