What I think would be a mild improvement: Since you already have the shot of Dooku scrambling into his ship, lightsaber ignited - I think you should cut to the shot of Yoda reaching out to catch the column from immediately after his lightsaber is deactivated. Just so there’s that visual context before cutting to the reaction shot.
As for solving the Dooku lightsaber continuity, an idea you could try: Add the lightsaber ignition sound after Yoda says “Much to learn, you still have” and then cut to Dooku’s “This is only the beginning” shot.
Dooku’s clearly in a fighting pose, and it could imply that he’s ready to fight Yoda if he chooses to follow him rather than save Anakin and Obi-Wan. I think the way the line is delivered and a few quick cuts would also hasten the moment. Add a little urgency to what’s happening rather than Dooku just calmly raising his arms again followed by a straining Yoda.
Though this could end up being time intensive for something you may not want to keep at all.
I believe HAL’s edits masked the saber out of that shot, so if I end up including this sequence, I’ll probably just “lovingly borrow” that.