Hi,
Cloudways offers optimized servers with advanced caching technologies such as Varnish, Memcached, Apache, Nginx, and PHP-FPM, which boost the performance of your WooCommerce stores.
Here are the stats that Cloudways published which shows performance comparison of WooCommerce with and without Varnish.
I personally experienced DigitalOcean Cloud Infrastructure where I added 1000 products to my WooCommerce store and guess what? My store loaded in just 249ms.
DigitalOcean, Linode, Vultr, Google Compute Engine, Amazon Web Service or Kyup (auto-scalable server) are all renowned providers and integrated in Cloudways Platform. Hence you can pick any of these cloud provider depending on how close their data centers are from your targeted audience.