Hi there yokai! I hadn't heard of this issue yet but I saw that it was reported by our teams already, and it looks like this should have been fixed already. If you don't mind, please check and make sure you have updated the game first. If this stutter still occurs after that has been confirmed, I'd like to complete some basic troubleshooting and workarounds to see if they help at all.

Please take the time to work through the following steps and note that if one works to resolve what's going on, you won't need to do any of the others:
- Install Ubisoft Connect and the game on the same drive as your OS
- Verify the game files[ubi.li]
- End unnecessary background processes via Task Manager
- Unplug non-essential peripherals (additional monitors, VR equipment, controllers, etc.)
- Clear the Steam cache[ubi.li] and the Ubisoft Connect cache[ubi.li]
- Perform an SFC Scan[support.microsoft.com] on your system (if the scan detects any errors, you may want to repeat this step multiple times until the results are clear)
- Reinstall C++ Redistributables[docs.microsoft.com]
- Some Nvidia players have noted an improvement after rolling back their driver version[www.nvidia.com]
- Everything listed in this FAQ article[ubi.li]

Since you mentioned this could related to connection stability, I'd like to work through these steps as well and rule out as much as possible:
- All of the steps in this FAQ article[www.ubisoft.com]
- Port Forwarding should be done[ubi.li]
- DNS Flush[www.ubisoft.com]
- Performing a trace route will help to identify any delays[www.ubisoft.com]
- Perform a ping test to check stability and identify packet loss[www.ubisoft.com]

If this stuttering issue continues after those are done, please follow up and let us know by submitting a new support case on our website.[ubi.li] Attaching the following in advance will save us time as well:
- Your MSinfo and DxDiag files[ubi.li]
- Screenshot showing port forwarding has been completed
- Screenshot showing the results of the trace route
- Screenshot showing the results of the ping test

After your case has been received, an agent from our technical support team will be able to follow up with you directly to proceed further. Thank you for all of your help with getting this investigated properly!