Mail and whatsapp communication, which option to go with?

Hi Bubblers,

I am planning to use brevo & twilio’s plugin in bubble to send communication over mail & whatsapp to my users.
I am confused should I go with the plugins as it loaded (their JS) in every screen and takes time to load page.

Or should I manually set them up through api.

also if anyone could suggest good tool for whatsapp transactional msg sending to my bubble users.

Thanks!