For some time now, I've been having a lot of problems with TF2.
First, it wouldn't open. Then, it opened, and worked perfectly fine until a few days later.
2fort, and only 2fort, began lagging so bad the game froze and I couldn't even move my mouse. While playing 2fort, the game would freeze my computer every few minutes and then decloak/undisguise me if I was a spy.
The first map loaded would be extremely slow, and loading maps other than the one first loaded causes the game to freeze and then crash.
Too many things going on at once, or sounds being played for the first time, would cause me to lag for a minute or two. This also happens with people using mics.
Also, recently the audio has been jittery and lagging behind the game volume, sounding so disjointed that it literally makes me cringe to hear it.
I have no idea what's causing this, as TF2 worked perfectly until around January.
If you people have any insight into this, help would be appreciated.