Acrobat is PAINFULLY slow to edit doc

I opened a PDF created by another company and simply wanted to delete a few fields and add a company logo.  The app is so slow I can barely use it...  Just to move the logo I've pasted using the arrow keys is an excruciatingly slow process.  Moving left or right or up or down "5 clicks" can take 30 seconds.  Seriously adsurd...  I.e.  Get up and walk away from the machine while it is trying to move an image within the document or even simply scroll.

Yes, my machine can handle this app.  Brand new iMac w/ 256gb of ram.  Acrobat acts like I'm using an Intel Pentium from the mid-90s.  I run Illustrator all day / every day without an issue.  Acrobat is unusable.

Surely there's a solution???????