Let's say that initially I didn't give any importance to the difference in speed between PAL and NTCS, also because I think there are very few C64 games that take it into account. But then I had some requests, in particular for Dig Dug Revival (some people said the NTSC speed for this game was "indispensable") and so I reconsidered the question. In any case, I will not implement NTSC speed for all my games, but only for those that I deem appropriate and for which there are no problems due to the computing capacity of the machine.