2.6.1 fps #'s lower right corner

[Dhuman]

Running 2.6.1 lower right corner of the screen there is "fps # "
what dose this mean and what effects the changing #
seems that the smaller the # the more jerky the movement is.
Example: map size 11, day skybox, put two trees, one cart and a lean-two
type building and one of the little guys to talk to.
#'s at start well over 100 (fps 100)
after making all the above in that area the numbers went down to fps 5 to 10
when i leave the area #'s go up to only fps 18 to 20
can some one please explain?
Dhuman

[chocolatepie33]

Answered your questions on the second version of this.

[arcones]

Due to double post I'm locking this.