Experiencing a frame stutter in certain biomes using a GTX 560 Ti, anyone else?

As the title says, I have been experiencing a very awkward frame stutter in certain biomes of the map. I will have a solid 60 frames for 1 frame and the next frame will be roughly half or less. This happens on an oscillating behavior and the pattern is like so: 60-30-60-30-60. I have noticed that this seems to be happening in the desert biome and when water is visible. Take a look at the screenshot below and you will see the FPS graph showing the oscillating frames.

For reference I am playing on Fastest settings with everything in the F2 menu disabled except for Color.

how to fix it Rust my not connect

This is happening to me as well, but i do believe the trees are causing it. And if im not mistaken the are re-working the forests/trees the past few days to fix the problem.