Video Update
Tell me if you think this works. I did some re-editing to make the droid save Obi-Wan quicker, as suggested by Acbagel, and then re-structured the line (that i actually had removed from earlier) “The years have made you weak” with a slowed-down and disappoined “Obi-Wan” at the end of it. The purpose is to almost make Vader give up an immediate hunt because he is disappointed - but without it feeling to on the nose with something like “Escape. I will find you” or some clichè line you’ve heard in countless films and series.
I like this but I think you should cut the “obi-wan” out of Vader’s final words there simply ending on “weak”
The Obi-Wan on the end makes it feel very stitched together.
Agreed, that “Obi-Wan” line sounds a bit strange to me. But the scene now works really, really well, much better than the actual scene of the show. This, along with the cut off of Vader talking to Reva in episode 4, certainly will made Vader competent again.