Enable GPU Acceleration in FonePaw Video Converter Ultimate can improve the conversion rate of the video. The conversion time is very different when you enable or disable it.
To enable GPU acceleration, you can click on the gear icon below and check the Enable GPU Acceleration option.
Or, you can click the triangle button beside the gear icon and see if it is enabled.
We have compared the performance between the new and the old version by converting the same 4K video (3840 x 2160) in different resolutions. And here is the result:
As you can see, enable GPU Acceleration can speed up the conversion rate and you can converse large videos in a shorter time.