hello
i just got a new computer, and for some reason my games get a major drop in fps when i plug in a second monitor
the only fix i have found to this is to mirror both monitors and then set it back to extend
any fix for this?

specs
OS : windows 10
cpu : i5 6400 @2.70ghz
gpu : gtx 1070

also i noticed this
https://i.gyazo.com/19b5249a843063f8...ec34fa8c3f.png...
https://gyazo.com/52e1609bb8fcc9ae7e7c03e2f5c4e87a.png
does this mean anything?
i'm not sure what any of this means so anything will help