tried no fps limiting
And it was running constant 120fps, but I felt the input lag
So I highered up the resolution in resolution scale setting to 150% which is 4k res, and it was then fluctuating between 110-120 again and was getting the same issue again
So yea ULMB + Gsync is not for me at least. will wait for a real solution unless the dell is different then I can imagine buying that screen if it works perfect.
If you do have Battlefield 1 would you mind testing this for me?