I have checked attached files and tested on different tools, I will able to reduce loading time and increase performance.
You have tried few good things, still there are ways to improve speed.
Relevant Skills and Experience
I have 10+ years of experience on Speed optimization, Design and development, SEO and more.
Skilled on Wordpress/Joomla, CSS, JS, HTML, PHP, MySQL, Linux or Windows Server, AWS
Proposed Milestones
$150 USD - speed up
List of Some optimization works:
Optimize/Minify CSS, JS, HTML.
Enable & configure Caching
Optimize images, jpg, png,
Enable compression.,
Combine css and js files.
Fix Leverage browser caching issue,
Reduce server response time,
Optimize google fonts.
Clean & optimized database and tables
Eliminate render-blocking JS & CSS
Remove query string
Enable Keep-Alive.
Configure CDN
Make fewer HTTP requests.
Reduce DNS lookups.
Configure ETags
Quick Loading External files.
& more..