so when I play an animation to check the progress the timeline lags like it'll start from like frame 0 to whatever frame and it just doesn't work please fix it.
I'm sorry, but this isn't a bug report. A bug report states a problem clearly in terms that make it easy to reproduce the issue. It also adds relevant information, like hardware, os version, image file specification. And finally, a bug report should use the latest version of Krita, which right now is 4.0.4, not an older version. There just isn't anything we can do with reports like this.