Hi, thanks for playing! I'm glad that you enjoyed it! The slowdown feature was added after a playtester pointed out that the game was too fast paced and might be inaccessible. I added the feature by, yes, literally effecting the framerate, I'm going to admit that this was definitely not the best way to implement the feature, I'm not the most talented developer, I can make some interesting stuff with what I know and what I can learn, but I didn't quite know how to slow the game down in a way that didn't actually break the gameplay, it probably comes down to math, so I just took the quick and easy approach, if you know any way to make a better slowdown feature I'd love to know because I would like this game to be buttery smooth at all times!
Again, thanks for playing!