PHP is fast for a dynamic language (compared to say Ruby/Python and even JS). It has the disadvantage that it gets slow by default the more code you have, because it has a static execution model.
WP is extremely bloated and slow though. You can only make it fast by telling Apache to not execute it and hitting your cache (or with a caching layer in front).
With heavy caching (flushed on data changes), hand written themes and plugins, modern build tools for frontend assets, image optimization etc. You can get get top metrics.
However, that's just frontend. The admin panel is always slow.
If your use-case allows it, you rather build one with something like hugo. Hugo and similar are very easy to use and net you much better results.
My general tip is to not build websites with WP if you have web development skills.
PHP is fast for a dynamic language (compared to say Ruby/Python and even JS). It has the disadvantage that it gets slow by default the more code you have, because it has a static execution model.
WP is extremely bloated and slow though. You can only make it fast by telling Apache to not execute it and hitting your cache (or with a caching layer in front).
With heavy caching (flushed on data changes), hand written themes and plugins, modern build tools for frontend assets, image optimization etc. You can get get top metrics.
However, that's just frontend. The admin panel is always slow.
If your use-case allows it, you rather build one with something like hugo. Hugo and similar are very easy to use and net you much better results.
My general tip is to not build websites with WP if you have web development skills.