Well.... it runs very smooth, and is an original game concept!
Original games concepts are difficult to do, so well done on that!
I'd say my only real advice, would be to increase the speed the ground moves at, iti seems to be moving at half the speed that the fences/pots do, so maybe fix that.
I've finished writing my space invaders clone for now, I'll come back to it sometime in the future. I'm now writing an endless 2D runner that will form the basis of a platform game engine using libGDX. I'll release the source code for the runner at the end of next week, what ever shape the game's in.