We checked your issue.
1. Reduce initial server response time – You need to use Static caching for solving this.
2. Remove unused JavaScript – Usually, this is not a problem but this time, it has AMP scripts in it.
Recently Google has changed the ads to AMP4Ads, now those “unused” URLs are actually getting loaded in the iframe. So that is also being counted as unused, which should not be the case actually this thing is confusing a lot of people. In reality, the script isn’t loading, so there is no performance issue or slow down in speed as the report might suggest.
3. Eliminate render-blocking resources – Font awesome CSS is loading, to solve this, use CSS Icons from https://take.ms/hiVy7
