Cubasis Latencyproblem vs Garageband

Cubasis latency problems are causing much frustration. I can’t record more than 4 tracks when latency problems start. I have plenty of free space, airplane mode and background apps are off, audiobus set to 512. These are unprocessed tracks, no plugins, just 2 rhtymn guitars and a percussion track so far. I recorded the same tracks plus, plus 7 more on the Garageband app and there are no latency problems. Does anyone know why cubasis has the problem and Garageband does not?

Which hardware / os ?

Newest version 7.