To OP and people who elaborately configure their keyboards - is it worth it? Does it improve performance by a meaningful amount?

I've been thinking about observing my typing / window interaction patterns and optimizing them, but never could find the motivation. Sometimes I catch myself pixel-hunting some control in my IDE and wondering if there is a shortcut for it, but then again, is configuring/learning the shortcut worth the trouble?

Or maybe configurability benefits kick in after a threshold? I think there is a reality where I can be at least 5% productive by just streamlining my "head-computer" link, but I'm not sure what it's going to take to get there.