LWJGL 2.9.3 has officially been released and includes the fix for this issue. Details here.
I have identified a problem in LWJGL that may be causing this issue and have pushed a fix. LWJGL 2 nightly builds are currently down, but I have uploaded a build here (lwjgl.jar only). Could someone try it out and let me know if it fixes the stuttering problem in Minecraft?
LWJGL 2.9.2 was released a couple of weeks ago, but I'll do a 2.9.3 release just for this.
This should be fixed in the next LWJGL nightly build (#170)