Need to delete phpmyadmin table entries in database in bulk (almost 170,000)

I have a website that attracts bot registrations ....over years it has attracted over 180,000 registrations by bots alone ....i need to know is there a way that i can delete all entries at once without having to delete 500 at one go which is the default limit of phpmyadmin.........

attaching video to show how i am deleting at present