I assure you that you will regret letting today's typical front end developer own performance. Performance is a user experience concern and today's typical front end developer is more like a backend developer when I got started in the industry. The vast majority are inclined to impatiently dismiss the the diverse needs of end users.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.