The config description even says where the problem is
The probability of a meteor spawning (an average of once every nTH ticks)
Every 20 ticks means there’ll be an average of a single meteor per second (since a second is 20 ticks)
Every 2 ticks means there will be on average a meteor every two ticks (or 10 per second)
As you can see, the game basically “rolls dice” to decide whether or not to spawn a meteor. The 1/20 chance is basically “roll a die with 20 faces, if the die lands on 20, spawn a meteor”.
Now try to roll a zero-sided die. I think you know where the problem is.
Sometimes, I dream about cheese.
