Is it normal for my EA not to perform well on other pairs?
Currently it does well on EURUSD. From your experience, which other pairs should go well?
Why do you expect your EA to behave the same in all currency pairs? It seems you are assuming EAs normally perform the same in all pairs. Which reasons do you have for thinking that?
Maybe your EA can behave similarly in those pairs strongly correlated with EURUSD.., you can search for something like "correlation calculator".
I actually don't think it will perform well on other pairs but based on my survey https://www.mql5.com/en/forum/12298
It seems others can do it. So I'm just wondering...
Maybe I was wrong to test on GBPUSD instead of USDCHF.
I thought GBP and EUR was in the same session so they move similar.