Unfortunately, Manjaro doesn’t provide a compatible Nvidia video driver. I suspect your constant freezes and bad performance is because you are using the open source driver called Nouveau
.
The compatible driver for your video card would be version 340 and Manjaro doesn’t provide this one since long time now. There is an alternative, installing it from the AUR, but that is at your own risk and is not supported.
If you want to try, you could enable AUR support in Pamac preferences (the Add/Remove Applications program you can find in the Application menu). When AUR support is enabled, you can then search for nvidia-340xx-dkms
and install it. It should install and configure the basics to have a working Nvidia version 340 driver, and it should automatically install the Nvidia modules every time there is a kernel update.
If you get a black screen on reboot, you should still be able to revert the changes by accessing a TTY (with CTRL+ALT+F3 keyboard shortcut), login, and remove the installed drivers with command pamac remove nvidia-340xx-dkms
It is possible that you would also first need to install the base-devel
tools, and also the kernel header, in order to be bale to install properly the Nvidia driver. To do so, run the following commands (//EDIT: added the driver install command if you want to do it all by terminal):
pamac install base-devel
pamac install linux510-headers
pamac build nvidia-340xx-dkms