Seemingly randomly low FPS in ~ 1/10 games. Only PC reboot seems to help


since several month I am experiencing this weird thing where every now and then the game will become very laggy/drop to ver low fps (1-2 fps maybe?). The issue will persist the entire game and the only way I could get rid of it wo far was by restarting the pc. This seems to fix it in most cases (or requires a second restart).

This happens in maybe 1 in 10 games and the other 9 games are perfectly fine. As the issue is only visible once the round started and with the slow rejoining process in HotS the game is often lost before I even manage to join again (plus I get placed in the quitter que if I am not mistaken).

I experince the issue is exclusively in hots and other games in general or other blizzard games work fine (e.g. Overwatch).

Any Ideas what this could be? I tried to reinstall HotS and the B-net client so far. I am quite confident that it is not a general internet issue and that my computer should be up for the task.


Some random specs (not sure what else to post here)

OS Name Microsoft Windows 11 Home
Processor 12th Gen Intel(R) Core™ i5-12400F, 2500 Mhz, 6 Core(s), 12 Logical Processor(s)
Installed Physical Memory (RAM) 16.0 GB
Grafics: Geforce rtx 3060

Hey there,

It sounds like something is affecting client performance over time. There could be a number of potential causes. The following will cover the more common causes:

Typically Windows is kept up to date automatically but there are many occasions where you may need to manually run Windows Update. In those cases you can go into Windows Update under settings or control panel and check for updates. If you are unable to check through Windows update, check out the FAQ here:

We want to make sure we have all driver updates as well. GPU, Network, Audio, Motherboard/system. All are important. Check with Nvidia directly.
Next we will want to clear out any potential corrupted settings data for the game client.

  1. Open the documents folder for your user in File Explorer(Right click Windows start, choose File Explorer)
  2. Delete the Variables.txt under Heroes of the Storm)
  3. Empty the recycle bin.

Try running your system in selective startup mode:

Create a new administrator account:

Once the account is created, shut down the computer, wait 60 seconds, restart, log into the new profile and try the app/client.

If that doesn’t solve the issue, then I recommend submitting a ticket with an msinfo attached for further investigation. (instructions for collecting that msinfo report will be on the form.)

Click your name at the top right of this page, click support, click contact support.

Thanks for your reply. I’ll give those a try and see if the problem persists.