Catalina high CPU usage even only browsing web page

Same problems after upgrading to catalina.

syspolicyd is sometimes on 400+% CPU usage... same with xprotectservice. Also when iam not working on the mbp and no applications are open something runs at the background and after some time 5-10 minutes it shutdowns itself and its hot like ****...

didnt have any problems before catalina.

(MBP Retina Late 2013 i7, 16gb etc.)

I had this problem as soon as I installed Catalina. I contacted Apple and they recommended deleting out files from the Library. I had a couple of DropBox .plist files. It seemed to work, but this morning when I opened Pages the fan started up, Pages was consuming 130% of CPU usage (I don't understand how that's possible), the fan was on full.

There's clearly a problem with Catalina if it can't run native apps like Pages properly.

In my case, the problem is with Qt Creator. It happens once a day or two. Usually it take up to 500% CPU. And when i try to 'Instruments' to get a look what going on, it even goes up to ridiculously 5000%:

Env:

macOS v10.15.1

MacBook Pro (2018)

I work on iMac 27". Before updating to Catalina, despite tons of opened app, the CPU temperature (iStat Menus measurement) was around 30°. Since Catalina upgrade, now it's around 40° with almost nothing opened. I don't like it !

Well, from my side powerd is consuming all cpu capacity after updating to catalina. I never ever had a problem until now. Fans are always running and trying to cool things inside lol. Anyone from apple here to help and advise?

I was having the same problems on my MacBook Pro 2018 plus the computer was unable to enter sleep mode and if it was able to enter sleep mode, the screen was staying black when waking up forcing me to force shut down.

I corrected both problems removing the driver files of j5create hdmi adapter from /Library/Extensions

j5create drivers are not compatible with Catalina making the hardware “react” as if its having an immune reaction to files it doesn’t recognize.

I moved the files to trash and everything is working fine for now.

Check if you have drivers that are not compatible with catalina.

My MacBook Pro 13in 2018 had no "fan-running" issues before Catalina. Now, with Catalina (10.15.1) the Activity Monitor often shows massive energy impact for Apple Mail, and the laptop is hot with fan running very noisy. Very annoying. If I close Apple Mail, it quiets down to no fan.

When i just terminate the processes Xprotectservice and syspolicyd - it works like before. anyone a idea to complete deactivate those two processes? Or a script that kill them every 15min or something like that?

First thing is to identify the parent processes of distnoted. Go into Activity Monitor and double-click on the row for distnoted. If you see a familiar name by going up through the parent processes, you may have identified the problem. Another thing that you can do is quit the process by hitting the quit button. Reboot and see if it comes back. Also try quitting all applications before rebooting.

Yes myAdobe Premiere now has a hard time editing videos this really sucks. It uses a high amount of CPU when doing anything.

DropBox plist files will be automatically recreated when you reboot. There are known problems with DropBox. Make sure that you have the latest version.

Same problem here, except mine is 'Safari Networking at approximately 105%' it drained my battery usage by about 8% in less than 5 minutes.