Hire another person?
First I recommend you try to learn as much as you can about your chosen tool for measuring your site's speed and all the metrics and as much as you can about the process, that way you understand what can be improved and what can't, and what a developer will need to do to improve your site's speed.
If you share your site's url, then I'm sure the experts here will be happy to let you know what improvements are still left to be made.
Kindly share your website URL so I can give you the solution. Thanks and Regards
Welcome to the Shopify Community!
This is Jay from Oakleaf Infoway. I am Interesting to help you with accelerating the speed of your website.
Longer load times have also been shown to negatively affect conversions.
“Our Aim” is to optimize the website speed up to 75-90% in any device. It’s helpful to the visitor who visits your website and spends much time without being annoyed.
If you wish to move forward with us.
Please add me over skype/Mail for an (instant communication).
Email ID: email@example.com
Aibek is here from Growavelabs agency.
We're working with different Shopify stores with speed optimization.
For now, we're providing free analyze and optimization of the Shopify Stores.
If you're interested, feel free to fill out this form, and we can help with that. You can find link here: https://mailchi.mp/f33da12dcb76/optimize-my-website
Hope to work with you soon!
Have a great day ahead.