What streched resolutions are there for Fortnite to feel fast?

I think that would be cool to try.

I can only recommend you 1280x1080 if that is too blatant streched for you, you can also try 1444x1080. However, the fastest and most agile one feels at 1154x1080 and 1079x1080

Thank you. But I'm gambling on a laptop that unfortunately only a maximum of 900 as height hinbekommt. At the moment I play at 1080x900. Can you perhaps recommend me on this cover?

Well clear e.g. 1280x860 would go

Thank you. I'll try it