This gets tough really fast; I'm doing well if my runs last a minute. It's a good game as it is, but if you'd like to try to put a little more work into it to get a more popular game in the end, I'd recommend letting the runs last longer and having an ultimate goal for the game.
A typical way of doing that would be having the points count as currency that accumulates so the player can spend them to unlock upgrades to make the game easier and make the runs last longer (along the lines of shields or time slowings that are triggerable by a keypress and can be activated N times per run, where N increases the more is spent on it, or smth), with the speed gradually increasing during each run (if it's not doing that already) so it will eventually get tough no matter how many perks are unlocked, and a target distance to reach to finish the game or reach new levels.
There are undoubtedly many other possible approaches to make the runs last longer and generate a sense of progressing.