hi there
I might have your solution
The only thing I can come up with is this:
1. make a trigger activated by your parade
2. put this in the on activation line: setacctime 0.5
This will make it go slow motion.
If you still find it too fast or find it too slow, just change 0.5 into 0.7(this will make it faster) or 0.3(make it slower).
The normal speed is 1
you also can change it into 0.1 0.2 0.4 ....and so on
I hope this is what you're looking 4
bye