Do you want to be #1 on Google?
Is your site as fast and error-free?
2. PERFORMANCE TESTING - Is your site small, fast, and nice looking? Is it 100% mobile-compatible? Is the server and website configuration both good? You certainly don't want to have any errors on your site such as missing pages, server errors, or other misconfigurations. Fix any serious errors. You can check the health of your website with a number of free online tools such as GTmetrix and Pingdom. These tools and others will give you a good idea of what could be improved on your site.
We can fix errors or warnings and implement performance suggestions!
The items listed and recommendations made are all things that we can help you fix. Some of it is usually quick and easy while other items can take great effort and time to get configured and working correctly, sometimes with only small improvements to your overall ranking. You might be able to pickup a few miliseconds by using a cdn or consolidating stylesheets, but that's a lot of work without much return. It's fine to revisit smaller factors at some point in the future. If your site is already pretty good as far as performance and basic technical requirements then you are ready to proceed.