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CPU 100% most of the time – maybe a cron problem?

e are running shop on Magento 2.4.3-p1 with 50 000 SKUS, about 800 categories and 5 language mutations. About 65000 users and 80 000 sessions monthly.

We are using cloudways server: 32GB RAM 8 core processor 640 GB storage

The CPU seems to be in peaks many times. We are not even running crons every minute, but every 5 minutes. But lot of our crons (for example full page cache) are missed all the time. THe developers from Amasty advised us to change crons to run every minute, do you think the server specs are good enough for this change? I am attaching screenshot of the CPU usage, about 80% of the time it is OK (under 50%), but then there are peaks few times a day when it jumps to 100% or 90%+..enter image description here