LT Resume – page speed issues

Hi,
I have downloaded LT Resume to my website, but my website is taking a lot of time since I installed it.
 
I have enabled cache, gzip but all these seems not work to reduce the load time:
https://developers.google.com/speed/pagespeed/insights/?hl=es&url=https%3A%2F%2Fwww.neoacevedo.co%2F
 
Plus of this, some generated CSS from the template are not being used and all these increase the page load time in +1s each one.
 
What config in the template I need to make to reduce the time load?