I tried multiple windows versions, 1709, 1807 and 2004 and the problems still there. I do have ISLC and did the tweaks and fixes with the HPET and synthetic timers. I also used TCPOptimizer to make sure my packets are not being split. At first I thought oh my rams not enough to I upgraded to a 32GB kit running at 4000mhz andTo ensure the refresh rate bugs i bought two 240hz monitor to make sure they are running fine together, at this point im just pulling my hair out because I tried everything.