Required MySQL Administration,MySQL Programming freelancer for Need a MySQL Expert to increase the speed on my website created through Magento. job

I am currently making a multi vendor website just like Amazon and Ebay. I need a MySQL Database expert to speed up my website as I have been having issues trying to upload products to the website. I have created my website using Magento 2.
I have tried contacting my website host and in the end they said to contact a MySQL Database Specialist.
Here's what my host said to me, '.... but the issue you are reporting is related with a specific MySQL query that is triggered only after you try to generate new products in your website admin area....The said MySQL query simply takes a long time to be executed due to the way it works. The only way this MySQL query can be optimized is to be altered a specific way but unfortunately, this would require the assistance of a MySQL database specialist and we do not offer such services. Note that we tried Memcached and Redis caching but none of those caching methods improved in any way this MySQL query.'

Skills & Expertise Required

MySQL Administration MySQL Programming