Bit of weird issue, randomly in act 2 some of the save files have started to lag like i'm on 9000 ping. If i load a save file at the start of act 2 its fine but my most recent ones it's only became worse. Its started to effect combat too some spells don't work and combat takes nearly twice as long. From googling it sounds like rare issue but i couldn't find a fix

Any advice would be appreciated