This is quite simple. All movements within the environment are increased to a ridiculous scale. When at the "Bedroom" base place, it takes less than one second for my character to travel from one side of the room to another (the long way). Jumping takes 2-4 frames to complete. When the jetpack is activated, I die instantly because of how fast I hit the ceiling and fall.
When I reset the timescale to .2 (still at the bedroom), my character then took a little more than 2 seconds to traverse the length of the room. Jumping was the same, as was the jetpack.
In the Avatar Editing screen, my character is moving so fast that there are two hands at all times - one in front, one in back, no middle. Strangely enough though, when I go to the Color Set area of the Avatar Editing, I can see that my character's speed has returned to normal. Also, if I create another window outside of the Blockland program (and the BL program is still visible), the character is indeed at the correct speed.
The problem is that my character (and all dynamic parts) are ridiculously fast. How might I correct this?