I need help speeding up my website. It's hosted on GoDaddy shared and uses Managed WordPress. I've run tests on Pingdom, PageInsights, GTMetrix and load times vary from 1.3s to 5s depending on the server location. Apparently Managed WP GoDaddy uses a CDN and their own caching plugin (Varnish). I don't know if that's good or bad.

PageInsights says I need to optimize images. I'm using WP Smush but clearly it isn't helping too much. I always manually resize all my images to <=100kb.

Also, the age old leverage browser caching problem... How do I fix that?

Thanks a lot for taking the time to go through this :)