我可以降低MySQL速度以突出显示哪个查询导致缓慢吗？

I'm working on an API written in NodeJS and connecting to a MySQL 5.5 database. On our live system, we have one query that's running at over 7 seconds. We've traced this down to a couple of tables having over 5 millions records in and incorrectly indexed.I'm working on an API written in NodeJS and con