1050 ti 4gb oc

Would i gain anything and i mean anything even 10% or would i lose performance with having them both installed, or will it just do nothing. If it wouldn't gain performance would i lose performance if i used it for a second monitor or is their no point to that also. Sorry if its a sill questions :)

I am working on a new build for an F1 racing simulator. My simulator will include a PC linked to 3 1080p 60Hz monitors and will be primarily running Formula 1 2018 (or newer versions when they are released). I currently have an old Zotac 1050Ti 4GB OC that I was going to sell but I was wondering...