Hi 92 hours is not normal, thats for sure. could you mention how large your DB is?
the DB is 27 GB
A schema change on the epoevents table occurred between those two versions. If you have a 27 GB DB I'd bet the majority of the space is on the ePOEvents table and that is why the upgrade is taking so long.
If it does not finish on its own you can bounce (don't stop but restart) the SQL server service which should trigger the install to fail and rollback. Then you can clear out old events from the DB and try the upgrade again.