After uploading the site to the hosting, it began to load slowly. What to do?

Question

css

Good evening. I uploaded the version to the hosting, but the site is loading very slowly. The console sparks with errors, I don’t know what to do. I read somewhere that maybe this is all related to the protocols, but I don’t understand this. Please help in any way you can, or the customer will kill me.

The layout is a little unfinished, but it doesn't matter now.

PS Issue resolved. It was just necessary to disable the SSL certificate in the hosting control panel.

Answer 1

https://tools.pingdom.com/#5c970f6520800000
Pictures still logically weigh a lot. also put a normal ssl certificate.