Im using a Mac with Mojave 10.14 and trying to open a 3.2mb pdf in Adobe Acrobat Pro DC. The pdf is (most likely) an output from Cad as it's a building layout. Whenever I select the file, small portions of the pdf will display immediately and only after 30-40 seconds will the entire image (layout) show up. If I try to move around the screen/enlarge/shrink (etc), everything freezes and I get 20-30 seconds of the spinning wheel.
This happens frequently with design files that were created on Autocad. Is there any known compatibility issue?
As per the issue description mentioned above, you are facing issue when viewing a pdf file in Acrobat, is that correct?
Could you check if "show larger images" option is checked under Edit > preferences > display? If not, try enabling it, relaunch Acrobat and check.
Also, check if an update is available for Acrobat using "Check for updates" option under "Help" menu, You may also download updates from here: Adobe software and product updates
Reboot the machine after installing update and try again.
Also, would it be possible to share the pdf file you are working with to replicate the issue at our end? To share the file here in the forums, refer to the steps given in this link: How to share a file using Adobe Document Cloud
You may also share the link for the pdf via private message - How Do I Send Private Message
Let us know if you need any help.