Problems importing PDFs

Since updating to the most recent version of DTPO, importing PDFs has become very slow. It used to be nearly instantaneous. Now I get the spinning beach ball and DTPO becomes unresponsive for a few seconds. The more PDFs I’m importing, the longer it becomes unresponsive. I have OCR turned off because most PDFs I import are already searchable.

Any idea what’s happening?

Can anyone help with this?