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Hello. I have a problem of FPS.
I went somewhere with my class.
I came back in the day. I run TF2 and then I see that my FPS on 10 ~ 30
and before I went 60 ~ 110
someone can help me?
thanks:)

Quoted from octochris

Before doing anything, make sure that your drivers are up to date. You never know, your issue might be fixed in a more recent version.

The first thing to check is that the CPU isn’t having all of its cycles taken up by another process. Look in Task Manager for any process(es) that appears to be using a high amount of CPU time. In many cases, this can be your anti-virus doing something. If this is so, you probably will want to disable it before playing TF2.

It is also possible that your hardware is overheating. Even if the overheating itself doesn’t pose a direct issue, many CPUs and GPUs will underclock (and potentially undervolt) to attempt to cool down if a certain threshold is reached. You can check your temperatures using something like SpeedFan. If you wish to monitor these temperatures in game, you can either use the Events tab in Configure to do something noticeable when a user-set threshold is reached (for example, you can set an audible beep to go off), or you can set up logging on the Log tab and look at it after playing. Bear in mind that you still need to specify the sensor data to log — this can be set up on the Temperatures tab, by selecting Logged when a sensor is selected.

If you use Mumble, there is a confirmed bug with some builds of 1.2.3 where the overlay would cause significant FPS drops in some games (and TF2 is one of the games affected). This issue should supposedly be fixed in recent stable builds of Mumble, but if updating doesn’t fix it for you (or you are already using the latest version) then you might want to try downgrading to 1.2.2 and seeing if that fixes it. You could also just disable the overlay.

If you’re using Mumble’s positional audio feature, you may want to try turning it off. There have been a few reports that it reliably decreases FPS, and in some situations causes FPS instability.

If using the -high launch option appears to fix this issue, you almost definitely have another process loading the CPU. You should not use this launch option all the time, even if it does fix it. -high is just a band aid, and using it for such issues is like using one to cover a war wound. You also risk having increased input latency, as running TF2 at high priority means that device drivers have to start competing with TF2 for time on the CPU, which is not a good thing. Instead, you should attempt to track down the process that is loading the CPU, and stop it from running.

This issue sometimes also manifests when running TF2 in windowed mode. You may wish to try running in fullscreen mode to see if the issue is alleviated.

You should also make sure that the issue still occurs when TF2 has been reset to defaults — this helps to narrow down the possible causes (and could quite possibly solve the issue anyway). To reset it, download this batch file, and run it.

#octotf2.pickup

fps_max 0 helped at some point I heard.