My Catalina is slow - telex type speed

I keep my fingers crossed, I think I solved it.

I had an NTFS partion (formerly used for Bootcamp) and reformatted that to AFPS with disk utility. Can't totally get it away, but that can be done later I think with the repartition tool. 

• Probably Catalina has a problem with such a partition.

Now the machine is fas like it should. Have Safari and Firefox active, Lightroom -making outputs, am browsing photo collections, and everything stays OK. 

Thanks Dialabrian, I stopped the real time scanning of filesystem by F-Secure (that is indeed a no-brainer, but left the browser protection on.

albert

Apple Support also sent me a mail, with tips.

What also helped very much is the tip to reset the NVRAM or PRAM.

Now my iMac is blistering fast.

What I did in the meantime is restart the machione and now the problems less (gone?)..

here is the dump (did some sanitizing)

issues I have had in the past (past 4 migrations) are with old migrated system software, like font-type catalogues that were not correctly synchronized and wanted to load under the new OS or on the new computer.

  Clean up - There are orphan files that could be removed.

  Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.

  System modifications - There are a large number of system modifications running in the background.

  32-bit Apps - This machine has 32-bits apps will not work on macOS 10.15 “Catalina”.

  Limited drive access - More information may be available with Full Drive Access.

Performance: Excellent

Sandbox: Enabled

Problem: Computer is too slow

Major Issues: None

Minor Issues:

  These issues do not need immediate attention but they may indicate future problems or opportunities for improvement. 

  Clean up - There are orphan files that could be removed.

  Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.

  System modifications - There are a large number of system modifications running in the background.

  32-bit Apps - This machine has 32-bits apps will not work on macOS 10.15 “Catalina”.

  Limited drive access - More information may be available with Full Drive Access.

Thanks about the tip.

Agree about the slower Safari, but should not inhibit other uses.

It is there to detect malicious sites (for instance I have a LUMU lightmeter and those people have a website that is blocked immediately, so harmfull it is, everything goes on red).

I know that the mac has an effective anti-virus shield, but still in the past I had issues after visiting/downloading from 'trusted' hobby sites. [Solved after rebooting several times.]

• what about those system mods? I remember fonts were loaded and reloaded in the background in Sierra during several months, untill I found out and reinstalled some.

So I will really think about it as last resort.

Well, after hibernating for some time the problems are back: the email and this post is again at telex-type speed, that is, the display shows later what I do than I type, deleting a word then always ends in deleting toomuch (there is a buffer thet is filling that I don't see).

By the way, I have F-secure already for several years also in Mojave. That cannot be the issue.

What I saw in activity monitor is the memory is yellow: I have a photo app (C1) running, but have had that running for ages, Mojave. Day in, day out, no restart. Even had Capture one and Lightroom simultaneous.

I think Apple should have a cleaner. Why install third party apps where some say they ended up in even more detrimental using them?

So today restarted again (often it helps) and it started off great, only after some time to start 'paintballing' again, like loading a excel document while the app was already there, in just under 5 secs and with the telex response again. Come on, for a Fusion drive with just 150 Gb of data.

• telex speed: even more annoying as the last typed appears where the cursor is positioned in the mean time, and the cursor could have moved elsewhere by me, e.g. to the end of the line.

I contacted support. They advised me to start up in safe-mode (keep shift depressed). This indeed had a good effect.

Activity monitor showed positive results: it immediately dropped the memory usage with some 2 Gb!

So I'll keep my fingers crossed. Kudo's to Apple.

Well, after an hour with Lightroom running and 6.2 Gb (not yellow) it is worse than ever.

The heads of the panels of Finder turn black . see picture, what is grey overlay is in fact black, the screen copy program makes it gray.

Safari is very slow.

There are positive things. Only this typing is fast. Not telex type.

You are quite correct. restarted. quick now.

a real charm

I will now open sveral apps to learn the Fusion drive what to do (that 'buffer' needs to understand the repetitive jobs like starting Word and Excell, and opening files).

Feel like a dumbo but when things go wrong, understanding ceases to exist.