i run nvidia/intel/optimus/wayland in optimus/integrated mode on my laptop. i have anecdotally noticed perceptually salient increased response times when: 1)

i run nvidia/intel/optimus/wayland in optimus/integrated mode on my laptop. i have anecdotally noticed perceptually salient increased response times when: 1) dpi scaling is in use 2) external displays are used via usb-c/displayport 3) the nvidia memory clock has been scaled down by power management that said there have been fantastic improvements overall to both stability and response times since kde6 and nvidia-open have stabilized and i haven't noticed any of it in a long time now. it really is pretty great these days.