I encountered some insane stutter when trying Portimao for the first time today, it's unplayable a good amount of the time. First lap usually is rather stutter free, sometimes not, but from lap 2 and on I get massive stutters. My FPS is jumping between 80 to 120 and occasionally will dip down to 59 (lowest I've seen it), but I can have these stutters even at 100+ FPS. I've checked CPU and RAM usage when this happens and nothing suspicious there. I've tried: Several cars, same issue. Other trakcs, no issues. Rebooting my system, no difference. I've attached my dxdiag to this post but here's a quick rundown on my specs: Win 8.1 Pro 64bit i5 2500k stock clock 8GB 1333mhz RAM Geforce GTX780 ASUS OC (I haven't OC'ed further) Any ideas? Anyone mind testing their Portimao and see if it's acting normally?