I was having trouble with Kontakt, where loading my orchestral template would make Reaper freeze up for
8 minutes. After googling, it seemed like doing Kontakts "batch re-save" would help. This did not help me.
However, after some more googling I found
this thread, where user msorrels suggests adding the libraries to your Antivirus exclusions list.
I tried it, and now the very same template loads in
45 seconds.
Just a tip!