Hello ,
Thank you for posting in the community regarding expectation with Path Tracer render times. In general the Path Tracer will take more time than the Raster Engine as it calculates light and shadows more accurately.
When rendering one movie of 10 seconds with 30 FPS it should not take 4-7hrs and there could be something in the scene taking a longer time to generate. Keep in mind the estimated time is not always as accurate as it could be especially at the beginning of the rendering total time.
If you export the video as PNG images instead of mpg you can find out how long each frame takes to export. This helps identify where there could be an issue as well. Found under the Export, Video settings (More menu).
Please contact us if you have not done so already and report a bug by clicking on the [ contact us ] button on the home page or by following this link: https://twinmotionhelp.epicgames.com/s/case-community-page
Kind regards,
Vincent B.