• Please note that we've updated the Mount & Blade II: Bannerlord save file system which requires you to take certain steps in order for your save files to be compatible with e1.7.1 and any later updates. You can find the instructions here.

Resolved [Beta 1.5.7] Performance drop

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Version number
No, I didn't use any mods.


Summary: The game is great, but performance dropped with the latest beta :
  • Heavy stutter in campaign map
  • Menus are generally less responsive and loading times increased
  • Combat camera and movements feel less responsive too, both in arena and open fields
How to Reproduce: Start a regular campaign

Computer Specs:
OS: Windows 10 (64 bits)
GPU Driver Version: 456.71
CPU: AMD Ryzen 5 2600X Six-Core
RAM: 16333 M
Motherboard: X470 GAMING PLUS
Storage Device (HDD/SSD): SSD SanDIsk extreme pro 500GB

Everything was fine with 1.5.6 and before (I started around November 2020 for a total of 376 hours).
I tried to reinstall the whole game but it did not change the outcome.
Going back to 1.5.6 fixes the issues.

Thank you

MArdA TaleWorlds

Community Support & Localization
Community Support
We have a special performance build to check for these issues by collecting telemetry data. Can you switch to that build, test your performance and send us your data?
  1. Switch to “perf_test” from the Steam betas tab. You can find more info about it here.
  2. Open the game as usual and proceed to the stage where you are experiencing performance issues.
  3. Before the performance issues start, toggle the profiling tool by holding the “right shift” and pressing the “T” key.
  4. Record for 20-30 seconds, press the toggle key combination again. Please keep in mind that, the more you record, the more upload time it will require.
  5. Find the "test.tmcap" file in the "...\Mount & Blade II Bannerlord\bin\Win64_Shipping_Client" folder. You can find the "Mount & Blade II Bannerlord" folder inside Steam’s application library folder.
  6. Finally, upload the file to the "upload.taleworlds.com" site. Please write your username and this threads URL into the description box so that we can find it easier. It is appreciated if you provide more information about your PC, what you were doing while the game was recording and your graphics configuration. If the data you are trying to upload is too big or the site fails to upload, you can use an alternative site to upload your data. If you choose to do that please left a reply to this thread with the download link.


Thank you MArdA.

The last hotfix for 1.5.7 has fixed the stuttering on campaign map.
I removed vsync and battles are smoother too.
I'll send a perf report if I notice something else but it seems ok now.

Keep up the good work
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