I solved that problem by binding capslock to Alt Gr and using a custom US layout with Alt Gr plus e-[;' bound to €ßüöä. This basically allows me to quickly swit

I solved that problem by binding capslock to Alt Gr and using a custom US layout with Alt Gr plus e-[;' bound to €ßüöä. This basically allows me to quickly switch to the German layout when necessary without losing much speed.