Performance is part of the product.
Fast software doesn't just benchmark better. It feels better.
Rendering, browser behavior, architecture, performance, tooling, and the small decisions that make software easier to live with tend to hold my attention longer than they probably should.
Most of my day-to-day work is on large customer-facing web applications, particularly e-commerce systems. I like software that feels simple because somebody took the time to deal with the complicated parts.
Fast software doesn't just benchmark better. It feels better.
If an abstraction mostly gives us more vocabulary to remember, I'm not convinced it helped.
Framework knowledge expires. Understanding rendering, state, networks, browsers, and software design tends to stick around.
The awkward parts usually don't introduce themselves until somebody actually has to use it.
The implementation is only part of the job.