Speed up woocommerce and create easier checkout

We moved our website to faster server, but still site is very slow Serverdetails: Centos 6 64 bit php Php 5.6.33 with MySQL 5.6.38 http/2 SSL So we need somebody to speed this up, either by optimizing server , or other means We got score for page speed of 59 / 100 now, so this is not good, specially since we are on 2 x 8 cores 2,5 ghz Problems found on [login to view URL] There are 30 CSS files served from the website. They should be combined into as few files as possible. There are 2 CSS files served from secure.gravatar.com. They should be combined into as few files as possible. There are 38 JavaScript files served from the website. They should be combined into as few files as possible. This page makes 101 parallelizable requests to the website. Increase download parallelization by distributing these requests across multiple hostnames Leverage browser caching seems not to work, although mod_expires is active Another issue, or actually update we need is to make ordering more easy for our customers. We have checkout as guest enabled, but somehow this not work, so we need other option, that people can order more easy and specially fast. (we had to disable paypal checkout because customers could not add their user details like address)