smashjohn :
Not a lot of info to go off of here, but it sounds like your FPS is linked to your Display's Refresh Rate (this is an option in OW). If OW thinks you have a 120hz monitor and this option is enabled, it will only render 120+10 FPS (approximately).
Look under your Video settings for "FPS Cap = Display Based" in OW and switch it to unlimited.
I'm guessing you might have a 144hz monitor. Keep in mind that running a 144hz monitor requires the correct cabling to achieve.. So you may have a 144hz monitor running at 120hz.
Also make sure you are testing without vsync, gsync, or freesync enabled.
always had it on unlimited fps , i have like 220 fps in spawn , 180-150 fps going into the game and 120-140 fps mid fights.
yep i do have a 144hz monitor , what do you mean by correct cabling? like display port dvi and stuff like that? if so i have display port cable .
and yes i always have them off