Jquery 3.5.1 & Standalone.css Causing Poor Load Performance

Trying to optimize CS-Cart but getting poor loading results with Google PageSpeed test.

There are 2 main factors that need help with addressing, currently the site loads slowly due to these issues -- Jquery and Standalone.css

How do we easily fix these loading issues?

31 KiB
12,222 ms

standalone css -- how can this be optimized? - causing a renderblocking issue

60.9 KiB
56.2 KiB


60.9 KiB
1,200 ms