Slow Loading… No idea why

Your images are far, far too large in terms of DPI, and your theme is very heavy with fonts and scripts. See https://gtmetrix.com/reports/matthewparentstories.com/j9dbFiIG

And you’re on FatCow, well known to be a slow host. See Recommended WordPress Web Hosting

See WordPress Optimization ? WordPress Codex

Thank you so much sir your expertise is appreciated. What would be a better DPI?

All you need is 72DPI; 100 to be safe. Save at medium quality; try a few images to check how they look.

Except Retina; if you want good images for Retina displays, you need to use a plugin: https://www.ads-software.com/plugins/wp-retina-2x/