High frontend load time on plugins_loaded caused by FluentSMTP closure

[neralex]

Hi FluentSMTP team,

I am profiling a WooCommerce frontend page with the WordPress Hook Profiler plugin and noticed that FluentSMTP adds about 30 ms during a normal frontend page request.

In the profiler I see this entry:

• Callback: Closure

• Hook: plugins_loaded

• Plugin: FluentSMTP

• Time: ~30.5 ms

• Context: normal frontend page view, no email is being sent

My question:

Is it expected that FluentSMTP initializes this much logic on every frontend request, even when no mail is sent?

If yes, is there a recommended way to reduce the frontend overhead?

If not, which FluentSMTP settings or modules should I check that could cause this?

Environment:

• WordPress: 7.0

• WooCommerce: 10.9.3

• FluentSMTP: 2.2.95

• PHP: 8.3

• Theme: child theme

• Request type: normal frontend page view

• No mail sending during this request

• Profiling tool: WordPress Hook Profiler

Screenshot attached.

Thanks!