That's the most common criticism I've gotten, but I'm not sure if I want to change it. My best run is 1.82x speed which is probably better than most people get, and that takes just over 6 minutes to achieve if I did the calculations right. For me personally, that's long enough to feel strongly invested in the run without being insane like the multiple hour sessions I needed to reach the top 10 leaderboards in One Finger Death Punch 2's survival mode (which is why I dropped that game). If I come back to the project I will consider some kind of dynamic speed adjustment, like collectible clocks that raise the speed instantly.