At the same time.
No, it would slow it down not speed it up. To speed it up you would have to go beyond 1.000000. Inputting below 1.000000 slows the video down. In my tests, 0.95902 is the best result I got to slow down PAL so that it can match NTSC speed with the slight issue of the video frames sometimes being one or two frames off every now and then compared to an equivalent NTSC video which again I don’t know if that is just normal part of the conversion or if there is a way to remedy that. Perhaps more decimal points for more precise control could be the trick but then there was the issue of the spinner control mentioned earlier.
But the audio totally matches NTSC speed on point from what I have experienced. I don’t notice an issue with audio pitch. Isn’t that really only an issue if the audio is being sped up not slowed down?
PAL runs approximately 4% faster than NTSC which means faster than it should go overall. If you compare any VHS or DVD release of any movie and compare the running times to the releases in countries where PAL was used (e.g. Europe) with those countries where NTSC is used (e.g. the Americas), you would notice that the running times in the PAL releases were always shorter. It’s not because they cut out footage but because PAL ran 4% faster.
To give an example, here is a link to the British Board of Film Classification’s page on Star Wars The Phantom Menace. Click on “Feature” and it will list all of the entries for the film that was submitted to get approval from the BBFC. If you scroll all the way down you will see a listing for “Film” and the other for “Video”. The “Film” is what was released theatrically and the BBFC lists that running time at 132m 43s. Then right above it at “Video” it lists a running time of 127m 24s. That’s for the home video release (i.e. VHS and DVD). European home video releases use PAL and because PAL is around 4% faster than NTSC the running time for the video listing is shorter than the film listing.