A poor UX/UI design can significantly impact website performance, leading to high bounce rates and lost conversions. One of the most common mistakes is a cluttered layout, which confuses users and makes navigation difficult. If visitors struggle to find information, they are more likely to leave the site without taking any action.
Slow loading speeds are another major issue, as users expect websites to load within a few seconds. If a site takes too long to load, visitors will abandon it, negatively affecting SEO rankings. Non-responsive design is also a common problem, as websites that do not adjust properly to different screen sizes drive mobile users away.

To improve UX/UI design, businesses should focus on creating a simple and clean layout, optimizing images to reduce loading time, and ensuring a seamless experience across all devices. Avoiding these common mistakes helps websites provide a better user experience and improve overall search engine performance.