Hi,
I have checked your Website with the URL that you have given, Very First and the most important optimization needed is Loading Speed of the website, as number of target consumer dont show the patience and switch to other related site.
This loading speed will be minimized to about Max. 4 Sec., without compromising any image quality.
Minifying a file involves removing, formatting, whitespace, and code. So as to improve the check out time.
Have to Minimize HTTP requests as your page has loaded with many Http request.
Have to compress the files and will audit the code accordingly take necessary action.
Yes, Mobile friendly website is playing a key role as it increases your rank in search engines and also maximum targeted peoples searches are mobile searches.
Have to use AMP(accelerated mobile page) to achieve the target speed over mobile.
In short the Solution that you are looking for will be provided with a quality being on the priority.
Queries can be made related to the same in working hours.
With Regards
Ankish A.