Woocommerce Database and backend very slow need specialist in speeding it up and finding issues

we have a current website setup using woocommerce and amazon for hosting. the back end database is very slow, gummy and unresponsive. need a professional in database management who can identify the issues of why it is slow and laggy. need somebody who can write a script to figure out the bottleneck of they the backend and database is slow.

needs to be an expert and professional in figure out why its slow and also need to implement changes to make it faster. only reply if you have experience in this