Hello,
As you're most likely to be aware, web site performance optimization typically involves tuning up at two different levels:
1. Host/server/web stack level optimization and
2. CMS level optimization (in your case, OpenCart)
In my experience, host level optimization is relatively easier to achieve, with more predictable results while CMS level optimization is typically more demanding/challenging.
I propose to tackle 1. above in the first instance, in order to speed up your website (home page as well as internal pages) so that it loads faster and gets better scores at Google PageSpeed Insights tests.
Kindly check my profile + reviews and if you find me suitable for the job, please message me here for further discussion.
With best regards,
Richa Varma
BE(IT), MBA(Marketing)
Freelancing Web Dev/Tech WAHM