I will but my TV is a pal 50hrz so that isn't a problem and I'm used to 50hrz games (the Core II was far to fast for me I almost got sick after playing 4 hours, wow it never overheats? )
Most PAL TVs since the early 90s support 60 Hz refresh rate as well. There's no need to stick with 50 Hz. It is not only the gameplay speed that is way slower, but in case of the Turbob also the music is affected, since none of the games were reprogrammed for 50 Hz - there weren't any true PAL/50Hz games for the TurboGrafx.
If the games are too fast in original speed, then maybe your reactions are too slow?
Just kidding, please excuse me. A lot of shooters are too hard for me to beat since I don't have the patience and time for exhaustive training.