nvidia driver - stuttering / audio lag

Im using ubuntu 20.04 lts with nvidia 465.27. recently i realized that my gaming performance is awful. I mainly play OSU and audio delay with stuttering is insane. there is no problem on other parts of the laptop. i can't use nvidiXsettings app. it straight up shows me prime profiles. and i cant use nvidia-smi command. I tried fixing both of them via google but i just couldn't do it without another hand of help. i also tried removing-reinstalling the nvidia driver. still didn't work.

lspci | grep -i --color 'vga\|3d\|2d'
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
01:00.0 3D controller: NVIDIA Corporation GM108M [GeForce MX130] (rev ff)

and

nvidia-smi
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

.

sudo nvidia-settings
ERROR: NVIDIA driver is not loaded
ERROR: Unable to load info from any available system
(nvidia-settings:123468): GLib-GObject-CRITICAL **: 14:06:07.282: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
** Message: 14:06:07.285: PRIME: Requires offloading
** Message: 14:06:07.285: PRIME: is it supported? yes
** Message: 14:06:07.318: PRIME: Usage: /usr/bin/prime-select nvidia|intel|on-demand|query
** Message: 14:06:07.318: PRIME: on-demand mode: "1"
** Message: 14:06:07.318: PRIME: is "on-demand" mode supported? yes

still beginner to linux. if any other command output you need...

Maybe you should go back to the 460 driver. You can go to "software and updates" menu and select the option nvidia-driver-460.

I have the same gpu as you, and using this driver everything is working fine.