Can I change the greeting and colour, and will it slow my site down?

Customising it: Yes. You can set your own greeting message and brand colour so the widget matches your site rather than looking generic. You can also collect a visitor's name and email to capture leads for follow-up.

Performance: No, it won't slow your site down. The widget is fast and lightweight and loads asynchronously, meaning it loads independently of the rest of your page. Your content isn't held up waiting for the chat bubble to appear.

So you get a branded, lead-capturing chat experience without a performance penalty.