performance of news template

hello I did a google speed test on my site - just uploaded the news template template and a few images on a VPS host and got a google speed rating of 18 (out of 100) and the following recommendations - I uploaded jch optimize which increased the speed but a certain modules stopped working

RECOMMENDATION GRADE TYPE PRIORITY
Enable gzip compression F (0) 80% Server High

Serve resources from a consistent URL F (0) 94% Content High

Specify image dimensions F (0) 52% Images High

Leverage browser caching F (2) 54% Server High

Minify JavaScript F (24) 90% JS High

Combine images using CSS sprites F (27) 64% Images Medium

Minify CSS F (38)82% CSS High

Serve scaled images F (49) 89% Images High

Optimize images D (68) 73%

Images High Inline small CSS C (72)93% CSS High

Remove unused CSS F (49.1) 62% CSS Low

Use efficient CSS selectors F (0) 20%CSS Low

Hi

I would recomend to use template minifie options for css and js than JCH one, than replaced the cache entirely with JotCache component. This solution gave me the best results, but still a lot depends from the content of the site.