When Nest first announced the Nest Hello last winter it peaked my interest. The Nest Hello is currently their only video doorbell product. At $229, is slightly less expensive than the $249 Ring Pro, so still not inexpensive. If it delivers on what it promises it could be an added value to an existing external camera setup or replace the need for separate cameras entirely.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips