If you're using Elementor, Essential Addons lets you expand your library of available widgets without slowing down your website.
The modular approach allows you to choose which widgets to enable and the code is not automatically added to every Elementor page so it does not affect your site's performance.
You can play around with the free version to get a taste of widgets. In the Pro version you also get a demo for each widget.
For these reasons, the risk is pretty small: you know exactly what you're getting, and if you like how widgets work, you can build better Elementor websites.