Sorry I am commenting here since I can't find the original thread re: browse tracker anymore.
I am getting no more slowdowns caused by it, so I could enable it back. It seems definitely fixed. Thanks !
Same for the various hiccups reported while typing (just 80% sure, shall test more).
As for the fix to the list tree position, as I also reported in the relevant ticket there is still a problem when renaming the last file in the list.
Thanks for the update !