No, nothing affects the performance. It is done to help make the voice leading clear. The manuals are basically in three voices (ignoring the places where Bach throes in some block chords - indication of a youthful work). In means 22 the middle manual voice is being written on the bass staff, when it goes back up on the treble staff in 23, they keep the notes beamed together so you can follow where that voice goes. If it happened to be two quarter notes when the voice changed staff, they might put a thin straight line at an angle between the two staffs to show that the alto voice moved from the bass staff to the treble staff. It's one of those things that is done for the more theoretically aware. You play the b as a dotted 8th note and the e as a 16th note where it would normally fall in the beat. No slurring or tying is implied.
Hope that is clear as clear as mud,
John