Hi guys. I have an asus gl502vmk which has a nvidia 1060m on it. When I installed kde neon stable developers edition, at first it was responding very well and very fast while it was using the default nouveau driver and take into consideration that I just installed it and did not alter any changes in grub settings. But, when I installed nvidia-390 driver using "sudo ubuntu-drivers autoinstall" command and rebooted the system, it installed nvidia-xserver and changed the graphic driver to nvidia, but the resolution on this had a little problem. Not only in the display but also in the x-server settings it showed that the resolution was 1920*1080& but it was not only super big, but also it was unbearably lagging. So I tried the "sudo apt-get purge nvidia*" command, it fixed the resolution but the lagging didn't go away. Please guys help me if you can. the first time I installed kde neon was the first I didn't see my laptop not lagging on a linux distro.

Operating System: KDE neon Developer Edition
KDE Plasma Version: 5.15.2
KDE Frameworks Version: 5.56.0
Qt Version: 5.12.0
Kernel Version: 4.15.0-45-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz
Memory: 11.7 GiB of RAM