VESTA(nginx+apache) + WP = payload?

Question

Nginx

There is a young site on WP. Costs on VPS from digitalocean ($5). nginx front + apache backend. The site is gradually growing (attendance).
Caching has not yet been enabled. But the plans are to cache pages to static using the wp-plugin + install Redis or memcached.
I heard that it is better to abandon Apache in the direction of PHP-FPM. But I've never dealt with it, and I'm used to crutches like .htaccess.
The question is - is it worth fooling around with the above caching methods, using apache as a back-end?
Is it possible to do without switching to PHP-FPM (rejecting apache)?

Answer 1

Apache+mod_php+Nginx Proxy work fine if properly configured. Nginx+PHP-FPM is never a panacea.

Answer 2

Why news?
Don't know how to configure software without GUI?
Then what kind of change to php-fpm are we talking about?
It is theoretically impossible to determine how many users will pull, this or that solution is theoretically impossible
Set up - apply the load
Change settings - apply the load
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