diff --git a/packages/nx/src/utils/perf-logging.ts b/packages/nx/src/utils/perf-logging.ts
index 0393017ada..c7b5784bd6 100644
--- a/packages/nx/src/utils/perf-logging.ts
+++ b/packages/nx/src/utils/perf-logging.ts
@@ -1,6 +1,10 @@
 import { PerformanceObserver } from 'perf_hooks';
 
-if (process.env.NX_PERF_LOGGING === 'true') {
+let initialized = false;
+
+if (process.env.NX_PERF_LOGGING === 'true' && !initialized) {
+  initialized = true;
+
   const obs = new PerformanceObserver((list) => {
     for (const entry of list.getEntries()) {
       console.log(`Time for '${entry.name}'`, entry.duration);