Question 1000hz Polling Rate Causing Major Cpu Usage and Frame Drops

[AarxnTheGodx]

So I recently I noticed that my FPS in games like Apex Legends would drop only when I move my mouse. I scoured forums and the internet to conclude that it was my polling rate. When I would lower it to anything less than 500HZ my in-game frames would be a steady 144 HZ and CPU usage would be around 60-70%. Anything higher than 500Hz Would cause the polar opposite, frames are at 100-120 and CPU would spike up to 100% and stay there. I would play on the lower polling rate but the difference to me is just too marginal so I just tank through the low fps and CPU usage. I have updated all my drivers, windows and game. I tried the same mouse on a different computer and could not replicate the issue. Any ideas at all would be very appreciated.
Also, the problem arose a few days ago and I cannot for the life of me remember anything that caused this problem

SPECS:
GIGABYTE GeForce RTX 2070 Super WINDFORCE OC 3X 8G Graphics Card
MSI PRO Z390-A PRO LGA 1151 (300 Series)
Intel Core i5-9400F
Thermaltake SMART 600W
Seagate Desktop HDD 3TB
AOC 1920x1080 144Hz Curved Monitor

I run all my games at 1080 and the lowest graphic settings with v-sync

 

[Newtonius]

Simply put your CPU is the bottleneck.

I understand how you feel as I have a 144Hz monitor and when I drop polling rate to 500Hz I notice the small added latency at high fps. But personally I'm also a competitive player so I need the fastest response times on every end.

However, this cannot be resolved simply with drivers or updates. It's bound to how much the CPU can process your mouse and keyboard (if your keyboard is also set to 1000Hz) updates and there is a considerable resource usage from 500 to 1K Hz. A jump in resource that I don't think a 9400f can handle along with a game.

What CPU does the other computer have? Are you able to upgrade yours?

 

[AarxnTheGodx]

Thank you for replying,
I am not able to upgrade but I don't see the point as this only just began to surface. When I built my computer I played with 1000Hz and never had this problem. It has only just now started to appear. The other computer I tested was a generic laptop with an Intel Pentium N3540@ 2.16 GHz. The problem is more severe on my main build than the generic laptop.

 

[AarxnTheGodx]

I don't know if this is the problem just something I noticed that my GPU usage is never going over 10% on all games. Maybe that is why the CPU is bottlenecking since my CPU is picking up the load from my graphics card?