screen freezes

I was in my promo's for like the 11th time and my 3rd game my game screen would randomly lag and be frozen for like 2 minutes and then it would usually come back right around the time I die. Usually it would kinda unfreeze for a second or two before freezing again several times before it would come back and there would be some huge circle things all over the screen. Like I legit dunno what to do and it really pisses me off because as I said I've been in my promos like 10 times and this was the easiest win ever if my game wasn't messing up. I know it's not my end because my music was running in the background and I could even hear the in game sounds going on and though it would take like a full minute I could alt-tab though it wouldn't let me bring up task manager. Then there would be some weird ass sound that would happen most the times it did it.

Like I'm just so pissed because now I have to win 2 games to get through and if I lose one more I have to do the entire thing again and I'm not sure