Good Score, But Website Doesn't Start Loading Right Away

Hello,

Maybe someone could help me with this problem. My website gets good score but loading time is quite slow. And I’ve noticed that it doesn’t start loading right away it takes 2-4 seconds to start loading. Could this loading issue be due to hosting provider? Website link catastic.pet

Thank you for your answers!

You need to fix issues with gzipping.

https://gtmetrix.com/reports/catastic.pet/EbLa9tzz

Enable compression for the following resources to reduce their transfer size by 1.6MiB (77% reduction).

Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/cache/min/1/ba528fe3187da646952eeaf9ef656333.js could save 1.4MiB (79% reduction).
Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/cache/min/1/921bba51f866e91702d94805a7dd1a52.css could save 164.0KiB (70% reduction).
Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/cache/busting/1/gtm-local.js could save 55.8KiB (63% reduction).
Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/cache/busting/facebook-tracking/fbpix-events-en_US-2.8.33.js could save 36.2KiB (71% reduction).
Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/cache/busting/google-tracking/ga-local.js could save 25.7KiB (60% reduction).
Compressing https://u8y8x9r5.stackpathcdn.com/wp-content/plugins/wp-rocket/inc/front/js/lazyload-10.17.min.js could save 3.0KiB (59% reduction).