kernel_task blocks up all RAM while using more then 1 Adobe Program

Hey folks,

I have a real issue here.

Since a couple of weeks, when I start using Illustrator and Photoshop or InDesign together, my whole system crashes. This happens too, when using Photshop and InDesign.

I usually work with all 3 (Illustrator, Photoshop and InDesign with Bridge) and never had issues before.

But as soon as I try to run 2 programs at the same time "kernel_task" is really eating up all my RAM (20GB)  and the Adobe Cloud Crashes all along Photoshop and/or Illustrator and/or InDesign.

Since I am super slowed down in my workflow, I am thinking the price of Creative Cloud just skyrocket.

– Enough complaining –

Everything got the latest updates.
Running on a iMac Mid 2011 (macOS High Sierra 10.13.6).

This is a screenshot of illustrator trying to find a problem in safemode (in German tho, sorry)

No change for the better.

Please help me.

Cheers