Thanks for playing! About the chasing monster, it's a bit complicated. Some people consider it too fast while others consider it too slow, I'm not sure yet how to solve it.
It was my pleasure. Obviously don't feel like this is the only solution, but I think making the speed inversely proportional to the players distance from the monster (the monster is faster at closer distances and slower at further distances) would make it feel a little more dynamic/realistic. That way the player feels some incentive to sneak, and the monster's behavior feels reactionary to the gameplay as opposed to just being stuck at a static speed.