Hi there, Matt Sergei here (do call me Matt, please) and can help you -
please provide more details:
1. Data source, format etc.
2. Refresh period (1 s?).
3. Just one line? Colors, fonts to use?
Otherwise I'm a D3.js pro here, webmaster and developer for 27 years, scripting web charts/maps/visualizations more extensively in last 7+ years.
Regards and hope you're safe,
Matt