It would be interesting to know if the same is true for Intel/AMD. I have one NVIDIA PC and the desktop - not even Games - feels very sluggish on GNOME - I haven't tried KDE yet. On the contrary, my AMD gaming rig subjectively feels very snappy, but I have never measured it.
GE 10.34 released March 23th, 5 days after 10.33 - any reason to test with 10.33 in June? Was there a regression?