Prueba esto alomejor te funciona:
1. Create your video as usual and use pro features like subtitle templates
2. Once you're done, select everything on your timeline (clips, text, effects...), right-click, and click on "Create Compound Clip"
3. Then click on your video, go to the "Video" section, enable Motion Blur, and set the intensity to 1
4. Wait a couple of minutes
5. Go to this path C:\Users\usuario\AppData\Local\CapCut\User Data\Cache\MotionBlurCache
6. And your video should be here ( you just have to find it ) !!