diff --git a/mqtt2prom/run b/mqtt2prom/run
index 59bd8f7..0f6fa81 100755
--- a/mqtt2prom/run
+++ b/mqtt2prom/run
@@ -136,7 +136,9 @@ $lastGC = time();
 
 while ($isRunning) {
     $loopEnd = microtime(true) + 1;
-    $mqtt->loop(1000);
+    while (microtime(true) < $loopEnd) {
+        $mqtt->loop(100);
+    }
 
     if ($lastGC + 60 < time()) {
         logit("doing Garbage collection...");
@@ -145,10 +147,6 @@ while ($isRunning) {
         $lastGC = time();
     }
 
-    if ($loopEnd > microtime(true)) {
-        usleep(intval($loopEnd - microtime(true)) * 1000000);
-    }
-
     if (($news && time() - $timer > 1) || time() - $timer > 15) {
         logit("Outputting ", $news ? "for changes" : "periodically");
         output();