UPDATE:
I shipped a new build that now does MEM_COMMIT incrementally, this should not make any difference with regards to the actual memory usage, but it should be helpful if your system's page file is small or non-existent. If anyone is curious enough to look at the difference, they can use https://learn.microsoft.com/en-us/sysinternals/downloads/vmmap, the working set (i.e the amount of physical memory that's actually used) should still be the same (it shows ~32MB on my machine), while as the amount of committed memory should be much lower.
I also doubled the player acceleration speed and made the hitbox thinner (also, the game now always sets its working directory to the directory where the executable is located, regardless of where you launch it from).