Strange FPS issues after going from Nouveau to Nvidia driver 460

[testott]

I just installed Mint MATE 20.1 in a dual boot configuration with Windows 10. I noticed performance wasn't that great and decided to install nvidia drivers. Everything runs fine at 2560x1440 144hz on Nouveau, but after switching to nvidia-driver-460 every application, window, etc now updates at 60 fps, but the mouse cursor moves at 144 fps. It's frankly driving me crazy.

What's weird to me is that if I run

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glxgears

, it runs completely fine and is visibly 144 fps on my monitor, and yet even just scrolling in chromium or moving the window around is clearly 60 fps or maybe even 30 fps.

Here's my system info:

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inxi -Fxxxrz
System:
  Kernel: 5.4.0-72-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 
  Desktop: MATE 1.24.0 info: mate-panel wm: marco 1.24.0 dm: LightDM 1.30.0 
  Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal 
Machine:
  Type: Desktop Mobo: MSI model: Z170A MPOWER GAMING TITANIUM(MS-7A16) 
  v: 1.0 serial: <filter> UEFI: American Megatrends v: 1.50 date: 12/05/2017 
CPU:
  Topology: Quad Core model: Intel Core i7-6700K bits: 64 type: MT MCP 
  arch: Skylake-S rev: 3 L2 cache: 8192 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 63999 
  Speed: 799 MHz min/max: 800/4200 MHz Core speeds (MHz): 1: 801 2: 800 
  3: 800 4: 800 5: 800 6: 800 7: 800 8: 800 
Graphics:
  Device-1: NVIDIA GP104 [GeForce GTX 1080] vendor: ASUSTeK driver: nvidia 
  v: 460.73.01 bus ID: 01:00.0 chip ID: 10de:1b80 
  Display: x11 server: X.Org 1.20.9 driver: nvidia 
  unloaded: fbdev,modesetting,nouveau,vesa compositor: marco v: 1.24.0 
  resolution: 2560x1440~144Hz 
  OpenGL: renderer: GeForce GTX 1080/PCIe/SSE2 v: 4.6.0 NVIDIA 460.73.01 
  direct render: Yes 
Audio:
  Device-1: Intel 100 Series/C230 Series Family HD Audio 
  vendor: Micro-Star MSI driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
  chip ID: 8086:a170 
  Device-2: NVIDIA GP104 High Definition Audio vendor: ASUSTeK 
  driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:10f0 
  Device-3: Tenx USB AUDIO type: USB 
  driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-3:2 chip ID: 1130:1620 
  Sound Server: ALSA v: k5.4.0-72-generic 
Network:
  Device-1: Intel Ethernet I219-V vendor: Micro-Star MSI driver: e1000e 
  v: 3.2.6-k port: f000 bus ID: 00:1f.6 chip ID: 8086:15b8 
  IF: enp0s31f6 state: down mac: <filter> 
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: d000 
  bus ID: 04:00.0 chip ID: 8086:2723 
  IF: wlp4s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 476.94 GiB used: 15.59 GiB (3.3%) 
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 950 PRO 512GB 
  size: 476.94 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> rev: 2B0QBXX7 
  scheme: GPT 
  ID-2: /dev/nvme1n1 vendor: Samsung model: SSD 960 EVO 1TB size: 931.51 GiB 
  speed: 31.6 Gb/s lanes: 4 serial: <filter> rev: 3B7QCXE7 scheme: GPT 
Partition:
  ID-1: / size: 58.80 GiB used: 15.56 GiB (26.5%) fs: ext4 
  dev: /dev/nvme0n1p6 
Sensors:
  System Temperatures: cpu: 38.5 C mobo: 29.8 C gpu: nvidia temp: 49 C 
  Fan Speeds (RPM): N/A gpu: nvidia fan: 0% 
Repos:
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/cuda.list 
  1: deb http://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64 /
  Active apt repos in: /etc/apt/sources.list.d/graphics-drivers-ppa-focal.list 
  1: deb http://ppa.launchpad.net/graphics-drivers/ppa/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com ulyssa main upstream import backport #id:linuxmint_main
  2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
  3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
  4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
  5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
  6: deb http://archive.canonical.com/ubuntu/ focal partner
  Active apt repos in: /etc/apt/sources.list.d/openrazer-stable-focal.list 
  1: deb http://ppa.launchpad.net/openrazer/stable/ubuntu focal main
  Active apt repos in: /etc/apt/sources.list.d/opera-stable.list 
  1: deb https://deb.opera.com/opera-stable/ stable non-free #Opera Browser (final releases)
  Active apt repos in: /etc/apt/sources.list.d/polychromatic-stable-focal.list 
  1: deb http://ppa.launchpad.net/polychromatic/stable/ubuntu focal main
Info:
  Processes: 254 Uptime: 35m Memory: 31.33 GiB used: 1.71 GiB (5.5%) 
  Init: systemd v: 245 runlevel: 5 Compilers: gcc: 9.3.0 alt: 9 Shell: bash 
  v: 5.0.17 running in: mate-terminal inxi: 3.0.38

I did find a couple other people with a similar issue, but their problems either had a different cause or went completely unsolved. Any help would be appreciated as I'm using Linux to start a new job, and the fps is going to make me lose my mind haha

[testott]

Nevermind, for some reason using a Compositing window manager with the nvidia driver makes windows run at 60 fps. Switching to a different window manager (in my case Marco + Compton) fixed it.

[testott]

Nevermind again! Sublime Text was still stuck on 60 fps, and in trying to fix that chrome is now also stuck to 60 fps. I'm frankly dumbfounded as to what could be causing this. Do I need to perform a clean installation and follow some specific steps to make sure my GPU is working properly with Linux?

[testott]

I ended up just wiping the whole partition and starting over with Linux Cinnamon this time. I ran into a different issue where my nvidia driver wasn't loading during boot, but I fixed it by following the advice from viewtopic.php?t=327160