Isn't this normal, when you move your mouse the game has more stuff to process so it lessens your fps unless i misunderstood the question.

not by 30 fps lol

Dont move your mouse

try downloading PrimaryLock (a primary monitor mouse lock) to prevent your cursor from going to your other monitor. I had an issue with this before and something about nvidia shadowplay was actually causing it. Could you also give your pc specs?

I've used Dual Monitor Tools which has screen locking as a feature. This seems to reduce it slightly but still has issues in more chaotic fights. It feels like a powerpoint at some moments.

PC Specs:
Intel i7-8750H @ 2.2GHz
16 GB RAM
64-Bit Windows 10 Home
NVIDIA RTX 2060
250GB SSD
2TB Hard Drive

Let me know if you need anything else. Its a Laptop fyi.

How expensive is your mouse? If it's not that expensive, I'd just replace your mouse in general. This issue sounds like an issue with the mouse itself.

It isn't that expensive so I can get a replacement. But whats weird is that this is a fairly recent issue (at least in the past 3-4 months) and has gone through 2 of the exact same mouse. It seems like it may be an issue with the PC than the mouse but if all else fails I may just replace it.

I'd test your mouse on a separate computer first before proceeding to buy a new mouse. I couldn't read all of the info, but when my mouse "died", I just re-installed my driver from the manufacturer and it worked fine. So I would do these first before doing anything else.

I also had to "apply" changes to the mouse before it worked, so maybe change something about the mouse? I don't know how logitech has their software set up so I don't know if this could be a solution.

I had this issue when I used a corsair mouse. Just had to switch mice.

20-30 fps drops could be a slight drop if you're getting 600 fps or a substantial drop if you're getting 60. If it's the former, I'm fairly sure that's just normal when moving your mouse in tf2.

Not really a solution but I've noticed my fps drops less if I change mouse polling rate from 1000hz to 500hz so that could be a trade off to consider.

Also make sure m_rawinput is 1, if your OS is doing any kind of processing/acceleration on mouse input it could lower performance slightly, especially at 1000hz polling.

For me it is the latter. I run tf2 at around 140 fps so a consistent drop in 20-30 factoring in fps drops from general play can drop below 60. Dropping polling rate seems to have an positive effect but with diminishing returns at 500/250hz. The problem persists. Raw Input is on.

Friend had this problem before that we solved. Can you try installing a earlier build of mumble and see if the issue persists?

First, try 1.2.20: https://github.com/mumble-voip/mumble/releases/tag/1.2.20
If it's fine on that release, try 1.3.0-rc1: https://github.com/mumble-voip/mumble/releases/tag/1.3.0-rc1

I tried the 1.3.0-rc1 and that didnt seem to improve things. Might need help getting 1.2.20 installed

Oh sorry, didn't see there was no installer. Try 1.2.19 https://github.com/mumble-voip/mumble/releases/tag/1.2.19

I used to have the same issue, here are some things that helped
1. Disable all overlays (mostly nvidia geforce, but also discord, mumble etc.)
2. Decrease mouse polling rate
3. Some mouse softwares lag more than others, as an example razer synapse gave me ~20 more fps, compared to logitech software

I had this problem. I fixed it by changing the Negative LOD Bias setting to Clamp in the Nvidia control panel.

It seems a combination of these and locking the mouse to one screen seems to have mostly solved the issue. I think the rest can be solved with graphics configs. Thank you for the help!