Ultima 9 might not be the best game ever made, but I got in the mood to play it. But I'm having serious issues with the game. Animations seem to be running in slow-motion It looks like the avatar is just gliding around, until I let go of the movement key, at which point the walk animation plays... very slowly. The rest of the game runs at the right speed, it's just the animations that seem to be completely borked.

I found this video, from 2012, showcasing the problem. They say that the solution was to run Win98 SE, but I don't have access to a Win98 disc anymore, so running a virtual machine with it seems to be out of the question right now:
https://www.youtube.com/watch?v=bdgAnyrsaXs

My specs: Win 10, 8gb ram, GTX 960 & an i5 3ghz.
Drivers are up to date, but considering the video is from 2012, I doubt that this is the problem.
Anyone found a solution to this problem?

Don't know exactly what I did, but I was playing around with settings in "Ultima IX ascension extended setup", and that seems to have solved it.

Hi, sorry for bumping this old thread but could you maybe post your Options.ini? I have the same issue and can't fix it in any way. I often come back to that game (still not finished) but only recently it started working so horribly slow. No idea what to do anymore.

EDIT: Suddenly my Ultima game started working normally again. I didn't do anything except allowing my OS to update. Since I don't think it's related to the update itself, I suppose the game fixed itself when laptop was turned off or restarted. I remember reading an article about San Andreas having some issues with stuttering, desync and broken animations during minigames. This was related to loss of precision due to QueryPerformanceCounter used as a timer. That timer counts time from the moment Windows was started, but Hibernation or Sleep modes do not reset that counter. I always put my laptop to sleep and turn it off maybe twice during a month, maybe less. Not sure if this is the actual issue, but if so, resetting/turning off my laptop recently probably fixed this.

Here is the article about the issue:
https://cookieplmonster.github.io/2018/08/07/high-resolution-timers-and-uptime-headaches/

tl;dr, this happened to me on a Windows 10 PC, and the solution is to reboot.

The article Caesum posted explains the issue.