Format settings latency readouts (#1170)

packages/app/src/utils/latency.ts

@@ -0,0 +1,13 @@
+export function formatLatency(latencyMs: number): string {
+  if (latencyMs < 1) {
+    return `${Math.round(latencyMs * 1000)}\u00b5s`;
+  }
+
+  if (latencyMs < 1000) {
+    return `${Math.round(latencyMs)}ms`;
+  }
+
+  const seconds = latencyMs / 1000;
+  const roundedSeconds = Math.round(seconds * 10) / 10;
+  return Number.isInteger(roundedSeconds) ? `${roundedSeconds}s` : `${roundedSeconds.toFixed(1)}s`;
+}