Ok, I’m back from my short vacation and returning with some useful content 😄 As you know, from time to time I write posts for you in the style of articles like Stop Installing Libraries: 10 Browser APIs That Already Solve Your Problems — which I honestly love writing, and I know you enjoy them too 🙂 Today I want to approach the topic from a slightly different angle. I’m going to show you a few interesting things that might accidentally be making your app much slower, even though they often look completely innocent at first glance. And the best part? Some of them can be fixed surprisingly quickly. Also, these are the kinds of issues Claude Code or Codex probably won’t immediately point out when you ask them “why is my app slow” 😅 Usually, we develop our applications on powerful machines with fast CPUs, plenty of RAM, and fast internet. Unfortunately, real users often live in a completely different reality.…