First, this achievement can only be unlocked in the Prologue level, toward the end, immediately after you enter the volcano (if you keep running toward the end of the path, the level will end). Just jump off the side of the path into the lava...in theory.
However, because it's buggy you may need to turn V-Sync on (under graphics settings). The change in resolution, aspect ratio, video quality, etc, should not be necessary, just making sure V-Sync is turned on. You might have to quit the game and restart to be certain the change in V-Sync actually takes hold.
Also, there is a suggestion this may only work in Story mode, not Free Play mode.