These are the default settings and known to work fine on Mac Mini M1:
1x = poly-sinc-gauss-long
Nx = poly-sinc-gauss-hires-lp
Modulator = ASDM7ECv2
Bitrate = 44.1k x256
If you want DSD512, then a PC with Linux or Windows is better. Apple’s M1/M2 work fine up to DSD256.
Yes, you can control through HQPlayer Client on some other computer. Or HQPDcontrol on iOS/iPadOS/Android.