There might be a slight advantage to having P2Go installed on a pc. It really is not needed at all since Win 10, and 11 can mount images, burn optical discs, etc. Someone still using say Win XP that may not have those tools.
I just tried burning a 1 GB mp4 file to a blank DVD-RW using Win 11 by Drag n Drop. The optical drive keeps making these click sounds every ½ second even when the file is completely written in 6 minutes. You see the file size in the opened file explorer after it is finished copying. There is no setting for burn speed. I don’t recall these limitations when using a particular third party software.
I do recall that my previous test on an earlier version of P2Go burned at max speed. Again there is no setting for burn speed.
Your version of P2Go may or may not have a speed setting feature. Many free and paid optical disc burner software have these features and other features like verify the data. It is important to read the instructions or help(F1 key) for any software to get the most out of it.