Install Divi Theme and WP Rocket
I will install Divi theme or Divi builder with API key for lifetime updates.
I will also install WP Rocket which is the #1 cache plugin in the market today.
Bonus! Bonus! Bonus!
Aside from installing the best theme and cache plugin.
I will also install premium Gravity Forms with lots of add-ons like Paypal, Active Campaign, AWeber, Dropbox, Freshbooks, and MailChimp to name a few.