I have an Intel Core i3-8350k processor overclocked to 4,3 GHz. I owned a Gigabyte Gtx 1060 6GB G1 Gaming, ran it in OC mode(aorus software). I had stable 144 fps on low settings in r6. Now I traded it for an 1 year old ROG STRIX 1070 TI and I run it in no oc mode, it fails to keep even 140 fps. I have a 144hz display with FreeSync enabled. Why is this happening?