This movement begins slowly, accelerates from measure 6, slows down again at measure 25, accelerates again at measure 30, and finally slows down again from measure 46 to conclude. In the score observed by the author, the tempo changes (fast and slow) are indicated solely by the two words "Presto" and "Grave." A key performance tip for this movement is to integrate these sections, where the tempo fluctuates between slow and fast.

If one merely accelerates or decelerates abruptly without thought, the flow of the piece will become disjointed, sounding as if many separate pieces are being played consecutively. This should be avoided.

The transition from "slow" to "fast" is not particularly jarring. For instance, a slow tempo up to measure 5, followed by a sudden acceleration from measure 6, can be perceived as a natural progression. The challenge arises when transitioning from a fast tempo to a slow one.

The music proceeds at Presto until measure 24, abruptly encountering Grave at measure 25. The key is not to instantly dissipate the high tension built up during the fast tempo. By playing measure 25 slightly faster than expected, the transition from measure 24 becomes more natural. If the speed of two beats in measure 24 is transferred to one beat (as eighth notes) in measure 25, measure 25 will be played at a considerably fast tempo, but this initial speed is acceptable. Then, gradually slow down the tempo through measures 26 and 27.

Human emotions cannot be changed instantaneously. Strive to let the heightened tension subside in a natural flow, rather than extinguishing it abruptly.