Building a website can be quick and simple by using pre-made themes. However, selecting the incorrect one can have an impact on user experience, speed, and SEO. Here are some things to take in mind:

Lightweight & Quick: Steer clear of bulky themes that cause your website to lag.

Make sure it is mobile-friendly.

SEO-Ready: Verify that the code is clean, the headings are appropriate, and the plugins are supported.

Simple Customization: Modify layouts, fonts, and colors without knowing any code.

Plugin Compatibility: Compatible with page builder, security, and SEO plugins.

Frequent Updates & Support: Always select reputable themes that are updated frequently.

Security First: To keep your website safe, stay away from themes that are cracked or nulled.

Simple & Scalable: Select a theme that expands with your website rather than adding too many effects.

Bottom line: A well-chosen theme boosts speed, SEO, and user experience .It is important to prioritize performance and flexibility over flashy design.