Severe Slowdown with all ROMs

Since about two weeks now, all ROMs I attempt to open do not make it past initial loading before Citra freezes completely. I attempted to reset the emulation configurations, but to no avail. In the worst cases, Citra closes by itself, but most of the time the game loads up, seemingly tries to load save data, and then freezes.

I hope for a quick reply and suggestions as to what may be causing this.

  • Operating System: Windows 10
  • Citra Version: Nightly 1589

In order for us to provide better support, we need to see the log generated by Citra. This guide will walk you through how you can obtain the log file: How to Upload the Log File.

Hi, try this:

  1. Open Citra then go to File->Open Citra Folder
  2. Open shaders folder then delete the opengl folder if it is there.
  3. Emulation->Configure... then click on Graphics on the left
  4. Click on the Advanced tab and turn on Accurate Multiplication

The Disk Shader Cache currently has a bug when Accurate Multiplication is turned off causing it to load all shaders slowly from zero every time you start the game and makes the precompiled cache extrememly large + the RAM usage skyrockets until you crash.

I tried it out.
The games get as far as before, though this time I at least have sound for about a second.

Also, something I forgot, the problem exists with both Nightly and Canary.

Upload a log please: How to Upload the Log File

citra_log.txt (26.9 KB)

System Information for Support

Client Version                                Nightly 1589 HEAD-96fa75f
Operating System                              Windows 10 (10.0)
CPU                                                  Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz
Graphics API                                  OpenGL 3.3.0
Graphics Renderer                             Intel(R) HD Graphics 4000
GPU Driver Version                  
CPU JIT                                       [x]
Hardware Renderer                             [x]
Hardware Shader                               [x]
Hardware Shader, Accurate Multiplication      [x]
Shader JIT                                    [x]
System Region                                 -1
Shader Disk Cache                             [x]

Here’s some issues I found with your log that might help.

GPU Driver Version:

This driver is outdated, you need to update.

Download from
direct link:

then follow this guide to install it:

Since you have an old GPU which can randomly crash due to a driver bug you might also need to use Nightly 1392 until you upgrade your computer:

If it’s too slow then your computer might not be fast enough, it is after all an old laptop from 2012 with only integrated graphics :stuck_out_tongue:

I followed the link the bot gave me yesterday.
I’ll try it out now.
(And I definetely will have to upgrade eventually.
My laptop is showing some signs of wear and tear,
especially on the screen and battery.)

Ok, things are working again, many thanks. :smiley:
A shame Monster Hunter Stories still crashes but oh well…

Oh for MHST there is an open issue about this that I opened yesterday:

Oh hey, thanks again. I’ll give this a look.

I will try to remember to give you an update if there is a solution to the problem in the near future.

That would be very nice. ^^