We all know Ironsight has problems with optimization, but there is a way for the client (you) to help with it. For me, I have this laptop (listed below) and it should not go over 60 fps. I do get frame drops but not much (and as terrible) as before. I did all the things game support would tell you but not these, They are launch options. Keep in mind that some may not be in effect like forcing game to use directx 12 (as the game has to support it) but since im not sure what worked i will be posting what i have.
Icore 7 - 5500u
Nvidia gtx 950m
1 tb HDD
Click here to learn how to make the game be managed by Steam .
Go to your launch option by right clicking on the script/game you have added from above.
Type in (or copy and paste this):
in the text box and click ok.
Now you should see improvement on your game.
Credit to this thread https://steamcommunity.com/sha…filedetails/?id=475747492. All Q&A is on there and detailed improvements to improve the fps.
I may include another way to use launch options without using Steam and just with Windows.