Macbook Pro 16" kernel panics, slow performance, Adobe problems....

Hi,

A Safe Mode boot deletes system caches that might help > Use safe mode to isolate issues with your Mac - Apple SupportUse safe mode to isolate issues with your Mac - Apple Support

Other than that, check the hard drive > How to repair a Mac disk with Disk Utility - Apple Support

same problem with me, my imac has lagging, cpu drop to 0.8 Ghz, fan crazy running over the limit 3600 rpm almost 3 month every time I watching youtube or connect external monitor.

the problem solve few day ago from this community after phillip member here give a clue... just check air ventilation of your mac , maybe dust block your mac airflow.

I vacuum my Imac, and everything back to normal, I feel like new imac, now when I running adobe and watching youtube, browsing over 15 tab reference for my job, use external monitor, the imac's fan never reach 2000 rpm. very quiet.

Etrecheck

Suggest downloading the Application Etrecheck directly from a Trusted Developer and well Respected ASC Contributor. The application is free or paid from added features. Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ). It will take a Snap Shot -  both the hardware and software. The Report will Not Reveal Any Personal Information. Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

Any Third Party Applications that will interfere with the normal operation of the OS, alter, modify, remove or delete or attempt to do so is an invitation for disaster and may require a Reinstallation of the OS.