Ever tried opening a huge Excel file or running a complex Power BI report on a basic laptop, only to watch it crawl or freeze up? You’re not alone. Many of us have felt the frustration of our computer chugging like it’s stuck in molasses when handling big data. In this post, we’ll break down why  this happens and what you can do about it. We’ll keep it casual and clear—no overly techy jargon—so you can understand the issues and find solutions without a headache. Let’s dive in