Question on switch site over from Wordpress to Static HTML / Javascript / CSS

Hey guys, I have a question on swapping sites from Wordpress to an HTML version. Is there any special considerations so I don’t mess up my rankings / SEO?

I decided to use my freecodecamp skills to redo my website http://www.saigonpads.com (runs on wordpress) to the html / javascript / css version I created here https://saigon-pads.firebaseapp.com/

I’m ready to flip the switch but this is a business site that has some good rankings already and I don’t want to get sandboxed or something. Thoughts?

FYI I just realized how clunky wordpress is. My google page speed score is 99 with the html/css/javascript version, up from 42 with wordpress. Never again haha!

Cheers,

Scott