Ok so, i started playing this again today, had no problems before, but i keep getting frequent lag spikes, i can still move around whereas everything else freezes and catches up after about 30 seconds, and sometimes i am suddenly surround by mobs and i am dead when it catches up. I assumed it was my connection, however my wife is playing this also at the same time on a laptop and she is having no problems and it runs like a breeze, it's been happening all day now and i just want it sorted so i can get back to enjoying the game, any ideas?

(Tried re-installing, updated graphics card, optimized settings)