EtreCheckReport - 'Some processes are using an unusually high amount of CPU'

I recently ran an EtreCheck report on my new iMac. Copy attached.

I have since done another Time Machine backup so the first 'Major Issue' in the report is now resolved.

The other 'Major Issue' is that 'some processes are using an unusually high amount of CPU'.

Details of these are shown in the attached EtreCheck report.

Could someone please advise me on how to address this issue?

Thanks

John Lee