Latency is likely from the webhost side. I've seen expensive managed WP hosts that still respond slowly because they know the average customer won't blame them,

Latency is likely from the webhost side. I've seen expensive managed WP hosts that still respond slowly because they know the average customer won't blame them, but rather their own internet connection. I work with a large ecommerce client that uses WP and our TTFB on an extremely dynamic page with user specific products and hitting external micro-services is still about 1 second. WordPress unfortunately makes it really easy to become very slow unless you diligently stay on top of things.