Slightly strickter limmiting

src/Api/ThrottleMiddleware.php

@@ -41,7 +41,7 @@ class ThrottleMiddleware implements HttpKernelInterface
             $limit_requests = false;
         } else {
             // limited throttling for non-users (at ip level)
-            $tokens = 15; // max nr of tokens (also start amount)
+            $tokens = 10; // max nr of tokens (also start amount)
             $rate    = 0.5; // tokens per seconds
             $name = 'ip_' . $request->getClientIp();
         }