diff --git a/projects/ngx-translate/src/lib/translate.service.ts b/projects/ngx-translate/src/lib/translate.service.ts
index 90d790b..fdd8aff 100644
--- a/projects/ngx-translate/src/lib/translate.service.ts
+++ b/projects/ngx-translate/src/lib/translate.service.ts
@@ -330,10 +330,14 @@ export class TranslateService {
   private getParsedResultForKey(key: string, interpolateParams?: InterpolationParameters): Translation|Observable<Translation>
   {
       const textToInterpolate = this.getTextToInterpolate(key);
-
+    
       if (isDefinedAndNotNull(textToInterpolate))
       {
+        //Fast exit to avoid overhead if no params provided
+        if(isDefinedAndNotNull(interpolateParams))
           return this.runInterpolation(textToInterpolate, interpolateParams);
+        else
+          return textToInterpolate;
       }
 
       const res = this.missingTranslationHandler.handle({