I'm getting exactly half the frames I set it to

Apr 21, 2018
2
0
10
If I set my Hz to 100 it works
If I set it to 144hz I get 72hz when I run a test
If I set Hz to 120 I get 60hz
Which is exactly half of whatever I set it to above 100.
I have a GTX 1060 and a 144hz Acer predator

 
Apr 21, 2018
2
0
10

Thanks for your reply
I'm getting screen tear though on all my games, and I didn't used to.