Whenever I play a game in windowed mode, 60hz and 75hz, even though I am recieving 60 fps or above, if I look at lets say a populated area or get into a intense gunfight, my fps looks like it dropped to 30 even though I am still recieving 60! This is not a problem in Fullscreen or Borderless, and Ive tried multiple OS's.Also, when I lower the resolution, I no longer have this problem, and things like google chrome and the os itself are not as choppy animation wise.
GPU: Radeon RX480 (4gb GDDR5)
CPU: I5 6500 (Not Unlocked)
Monitor: HP Pavilion f1703 (60,75HZ)
RAM: 16GB, DDR4
[Need anything else lmk]