Have read your report.
TRIM is not enabled on your mac, it would be a good thing to enable TRIM
as it should improve the performance of your SSD,
https://www.howtogeek.com/222077/how-to-enable-trim-for-third-party-ssds-on-mac-os-x/
Your SSD is running low on free space, it is a kind of general rule of thumb to keep about
15-20GBs of free space at all times so the mac can do its housekeeping. Your drive is at 24GBs
free space so it might be time to offload some data you do not need daily to one of your external drives.
Oh no you have CleanMyMac installed, this should be uninstalled according to the developers instructions.
CMM is notorious for causing more harm to macs than any benefit often flagging up files that you may be
tempted to delete, these are often system files and if deleted will cause problems.
Macs do not need any apps that promise to clean, optimise or speed your mac up, the mac looks after itself
pretty well units own, any third party app can interfere with the macs own built in housekeeping.
I see at some time you have had Avast installed, again these apps need to be uninstalled according to the
developers instructions, you still have bits of Avast in the Library/Launch Daemons and Launch Agents folder.
I would delete them.
Anti-virus apps are not necessary on macs there are no viruses that affect the mac, so the apps just run in the
background using up resources for no benefit, and again can cause you to delete system files it flags up as threats.
There are a lot of User Login Items, do you need all these apps to start up when you login to your mac.
Most are not even loaded suggesting you do not really need them. Open System Preferences> Users & Groups
Login Items, for each app you do not want to start up at login highlight it and click on the minus button.
Having too many apps open at login in can eat up your RAM usage, and you only have 8GBs to play around with.
Recently you installed Flash Player, Adobe is stopping support for Flash Player at the end of the year
so it will no longer work.
You have Fuse installed, what is that being used for, do you need it.
Towards the bottom of the report is the Clean Up section, the path of the files is listed
so you can delete them as well.
/Library/LaunchDaemons/com.cleverfiles.cfbackd.plist
/Library/Application Support/CleverFiles/BackService.app/Contents/MacOS/cfbackd
Executable not found
There are a lot of things that have been installed over the macs lifetime which you may not use
now, so go through it and uninstall anything you do not need.