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Or alternatively you need to focus on the real usability and page speeds that your visitors experience and not just these numbers.
Take a look at any number of major sites including those owned by companies like Google and you will find they have much lower scores than that.
If you are chasing high pagesoeed insights scores then you can still do that with WordPress. I just checked one of our sites platformaeko.eco and got 92 on mobile and 99 on desktop.