Opening the game makes my entire computer lag even after the game is closed.

[generic name]

Whenever i open and close terraria my entire computer lags continuously until i restart the computer.
This does not happen with any other game i have, there is no lingering terraria application in task manager, terraria itself does not lag when open.

My only guess is that this is a memory leak, but i dont understand how that would affect anything after the game is closed.

How can i fix this?

[KoJinKz]

What OS are you running?

If you are running an Intel 13th or 14th gen CPU (13xx/14xx) I'd suggest updating your motherboard BIOS due to ongoing Intel issues. You can check CPU version by running "dxdiag" (Win + R and type in dxdiag)

[generic name]

According to the diagnostic tool: the OS is "Windows 10 home 64-bit (10.0, build 19045), the BIOS is 4029 and the CPU is AMD Ryzen 3 2300X Quad-Core Processor 3.50 GHz

Im not familiar with the technicalities of this sort of thing, so im sorry if this isn't the correct information.

[KoJinKz]

That was the correct information. You aren't running Intel so the BIOS update is less important. The lag continuing on after the game closes makes this much more difficult to diagnose.

Some generic stuff you can do:

- Update graphic card driver
- Verify the integrity of Terraria if you installed it long ago (https://help.steampowered.com/en/faqs/view/0C48-FCBD-DA71-93EB)
- Try running without mods if mods are installed
- Change the windows 10 power plan to performance
- Load optimized defaults in BIOS. (Could have a bad overclock configured) Note: Re-enable XMP if it was enabled as defaults will likely disable it.
- Update BIOS (Last resort)

Your OS seems to be fully up to date which is good.

Some advanced stuff:

- Provide motherboard/RAM model and RAM frequency. I'm avoiding posting non steam links so you'll have to google for this one. The windows app "system information" or the program "CPU-Z" can be downloaded to obtain the information.

Your CPU supports RAM frequencies of 1866, 2400, 2667, and 2133 without XMP enabled. If you purchased RAM with the max of 2933MHz then XMP has to be enabled in BIOS. Though, I am not sure if the system would even boot with base clock 2933MHz+ RAM with XMP off, never tried something like that.

[generic name]

When attempting to update my graphic card driver i was told that it is of the latest version.
Verifying the integrity of the game flies did not work.

however uninstalling and reinstalling the game did work but it also removed all of my steam installed texture packs which is weird.
im still subscribed to texture packs in steam they just dont appear in the texture packs menu in game, however texture packs that are installed not through steam (placed manually the \Documents\My Games\Terraria\ResourcePacks folder) still appear in the menu so the menu itself isn't broken.

I can work around the texture pack issue though. thank you for your help

[generic name]

Addendum; i was incorrect, the lag was reduced by a notable amount for a singular time after the game was uninstalled however after repeated testing the lag is the same as before.

[KoJinKz]

I'm assuming you are still using mods/texture packs? Does the issue persist with the game completely mod/resource pack free? Might be a bad mod or resource pack.

[generic name]

in my current installation of the game i have no texture packs as none appear in the menu. i am loading regular terraria and not Tmodloader so there couldn't be mods in the game.

[th]

When OS lags like that it probably means a simple thing - its GUI somehow loses access to GPU acceleration and can not take it back for some reason after the game is closed.

Now how to test this theory.

Switch Terraria in window mode. Restart your comp. Run Terraria for like a minute (it must be in window mode the entire time - from the start to the exit). Exit it. See the result about lags.

Now my second idea is to reinstall that XNA Framework. It's a framework Terraria uses to work. Check your installed programs and find it there. If it's there - uninstall it. Now install it back. You can find its installer in your Terraria Steam folder, something like that:
...\Steam\steamapps\common\Terraria\xnafx40_redist.msi

Test again.

Also it may be not enough to update your video driver. Better to fully reinstall it. If you have Nvidia Control Panel - before reinstalling the driver completely it may be wise to reset its settings to default. Or may be even to reset its settings to default just for the Terraria itself - there is such option there.

[ToleaTerminator]

yes

[th]

One additional way to test my theory is just to log off from the OS (without restarting the computer) and log back in. If lags vanish - my theory is probably correct.

[generic name]

This entire time my game has seemed to be in fullscreen; cant see the applications bar at the bottom of the screen nor the bar at the top of the application for dragging the application about the screen.

apparently, according to the settings menu, this was the game in windowed mode. when i clicked the option to change to fullscreen literally nothing about the game window was any different and this somehow resolved the issue.
in my copy of terraria the only difference between windowed and fullscreen is lagging every other application when in widowed mode. i am ♥♥♥♥♥♥♥ baffled

thank you for solving the issue. could you please elaborate as to your theory regarding the issue because i have no idea how this could have come to be the case.