Text Edits and Premiere in General Lagging the last couple of days

The last two days every time I'm trying to compose text on top of a video it is taking 2-3 minutes when it normally takes me 10-15 seconds.  I've troubleshooted everything and have a maxxed out Macbook Pro with all kinds of power.  This has not been happening to me as I do a lot of documentaries.  I've deleted my cache, and done all the things you are supposed to do.  Is this a Premiere Pro problem???