Optimize performance-sensitive code by eliminating unnecessary work:

• Short-circuit expensive calls: order conditions so cheap checks run first and prevent calling costly functions.

  // Prefer cheap value first to avoid extra computation
  const useHtmlLabels = node.useHtmlLabels || getEffectiveHtmlLabels(getConfig());
  

• Cache invariants outside loops: don’t call configuration/derived getters repeatedly inside forEach/map/render loops.

  const config = getConfig();
  data.nodes.forEach((item) => {
    // use cached config
  });
  

• Centralize heavy transformations & consider lazy loading: if you add expensive rendering (e.g., KaTeX/FontAwesome label processing), move shared logic into a common utility used by all diagrams, and consider async/lazy loading so the heavy dependency isn’t bundled/initialized for all cases.

  // Idea: shared label transform + optional lazy import of heavy lib
  export async function renderMathLabels(input) {
    const { katex } = await import('katex');
    return katex.renderToString(/*...*/);
  }