I don’t think so. It depends of the use case. If you load a single layer with Pianoteq and don’t open the native GUI, Pianoteq is quite usable with a lot of instruments/presets. Of course, if you play hard, you will reach the limits, but if not, you can enjoy a lot with it. I do it 
Anyway, if you want to play hard with Pianoteq, then RBPi4 is the way to go …
Regards,