Fortnite: custom refresh rate on streched resolution not working

[bartpowaz]

I would like to play fortnite on 1156x1080 with 75hz but with every resolution,except 1920x1080, it stays at 60hz. I have an amd 580 4gb card, I have already created a custom resolution on the radeon settings and I tried to use CRU but nothing works.
Can the problem be my gpu?

 

[TechyInAZ]

That would be issues with Fornite's game engine itself. I'd try searching on google if there is a way to force a refresh rate within Fortnite.

 

[bartpowaz]

I haven't found anything yet,I guess I have to buy a new gpu