If your site feels slow, a few Console features can help. Work through these in order.
Turn on caching
SmartCache serves ready-made copies of your pages and is the single biggest speed win for most sites. Make sure it is switched on (see Using SmartCache).
Use the CDN
Enable the CDN so images, CSS, and JavaScript load from a server close to each visitor (see Using the CDN).
Check your plan
Open the site's Statistics page. If the site is consistently busy or near its plan limits, a larger plan gives it more resources. The Business and Pro plans also add Redis object caching, which speeds up the database queries behind dynamic pages.
Review your plugins
Heavy or poorly built plugins are a common cause of slow sites. Deactivate any plugins you no longer use, and keep the rest up to date.