I use Handyscan on different PCs with very varying power, and on an Android tablet, too. The ‘mobile’ version (Android) does produce lower resolution outputs, which I find quite annoying, since it seems to be an active software limitation, not an effect of a limited calculation power on a mobile device.
I haven’t seen different results from differently powered PCs, only the speed of the fusing and meshing procedure is very different, taking from 20 sec on the most powerful PC to more than 5 min on the least powerful one.
Maybe one reason why noone answered was that “PC power effect” seems to mean the effect of the power - i.e. current - a PC can provide through the USB-port, which has no effect on the quality at all. I know I thought so when I read the topic. Furthermore topics get missed, it’s quite a busy forum. Certainly noone meant to just ignore the question.