Help with spam emails through contact page

[w@rs@w]

Would appreciate some help witth constant spam emails coming through my contact page on my site.
emails coming through yandex.ru with different email addresses. I'm getting hundreds a day. the other issue is legit contacts are getting lost and going to spam as well.

The site has been scanned and is clear of any virus, lastest update of the template had recaptcha v3 which integrates with the contact and reservation page.

Would using a different theme in WP help? reinstalling WP and starting from scratch (ideally last resort)

Any suggestions would be greatly appretiated.

site is www.sicilians.com.au it's a restaurant with online bookings so its vital.

thanks for any help'

 

[khaiduy]

you should combine cloudflare service and limit using contactform 7

 

[w@rs@w]

you should combine cloudflare service and limit using contactform 7

Thanks for the reply...the contact form is built into the template. I'm not sure which contact for it's using. Are you saying not to use contact form 7 or to use that? Thanks

edit, i do have wordfence installed