To me it boils down to: be mindful about performance of the code you write and improve the performance when you see a way to do it and it doesn’t cost too much.
I found a way to optimize how I represent files / directories in JavaScript and speed up sending s3 listing.
By themselves, those optimizations might have little impact.
I do believe that many optimizations with small impact will compound into large impact.
I’m committed to making Filerion as fast as possible.