Zend certified PHP/Magento developer

How can I improve response query time on Magento PWA with Magento 2.4.3 backend? low response network speed on production with Magento PWA

i’m currently developing a Magento PWA front with a Magento 2.4.3 store on backend. Thing is, when testing on production, and specially Category pages, sometimes the response time of some queries is to high and its making the store very slow. Im using Varnish so the response time may vary but when its slow, well, its slow. That reflects on lighthouse performance scores too.

Are there some specifics about magento-graphql caching that I should be aware of, and also, are this problems solved on 2.4.4 ? Thanks!