Illustrator 2019 Slow Performance on MAC

Hello hive mind!

I have Adobe Illustrator 2019 within Adobe creative cloud. (version 23 I believe)

When performing some tasks (Moving images when creating swatches for example), I am getting around 5 seconds of input lag. Not the end of the world but not ideal.

However sometimes the program completely crashes and I lose any unsaved work. (Slightly more problematic).

I have searched all over the forums for answers regarding this and I have tried the following (in no particular order):

-Reinstalling Adobe Illustrator

-Clearing the cache

-Unticking GPU acceleration

-Setting and external 64GB SSD as a scratch disk

-Turning off all other programs whilst running Ai

Ai is going up to 130% of CPU usage just by dragging an image 5cm across a canvas.

Here are the specs of the Mac.

macOS Sierra

Version 10.12.6

Mac Pro (Late 2013)

Processor 3.7GHz Quad-Core Intel Xeon E5

Memory 16GB 1866 MHz DDR3

Startup Disk Macintosh HD

Graphics AMD FirePro D300 2048 MB

Any Help would be much appreciated.

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