Magento 2 Performance & Feature Upgrade

My live Magento 2 store needs a focused round of improvements aimed at both speed and functionality. I’m looking for someone who understands Magento’s full stack—theme layer, core code, and server tuning—and can deliver measurable gains without breaking existing features... (Budget: $250 - $750 USD, Jobs: JavaScript, Magento, Magento 2, MySQL, Nginx, PHP, Redis, Web Development)