http://www.wpfastestcache.com/

Premium version might solve issues relating to website speed and score. Includes:

Desktop Cache 
Mobile Cache 
Minify HTML 
Minify CSS 
Combine CSS 
Combine JS 
GZIP 
Browser Caching 
Image Optimization 
Minify HTML Plus 
Combine JS Plus 
Render Blocking JS 
Cache Statics 
Delete Cache Logs

Refund Policy
Refund available within 30 days if not satisfied