diff --git a/config/config.go b/config/config.go
index 186c019..b244349 100644
--- a/config/config.go
+++ b/config/config.go
@@ -15,12 +15,12 @@ const (
 )
 
 // Defines all the limits
-// - request limit: max number of PUT/GET/.. requests (here: 50 requests bucket, replenished at a rate of 1 per second)
+// - request limit: max number of PUT/GET/.. requests (here: 50 requests bucket, replenished at a rate of one per 10 seconds)
 // - global topic limit: max number of topics overall
 // - subscription limit: max number of subscriptions (active HTTP connections) per per-visitor/IP
 var (
 	defaultGlobalTopicLimit         = 5000
-	defaultVisitorRequestLimit      = rate.Every(time.Second)
+	defaultVisitorRequestLimit      = rate.Every(10 * time.Second)
 	defaultVisitorRequestLimitBurst = 50
 	defaultVisitorSubscriptionLimit = 30
 )
diff --git a/server/server.go b/server/server.go
index c7e5afc..64d26a0 100644
--- a/server/server.go
+++ b/server/server.go
@@ -47,7 +47,7 @@ func (e errHTTP) Error() string {
 }
 
 const (
-	messageLimit = 1024
+	messageLimit = 512
 )
 
 var (
@@ -86,6 +86,11 @@ func New(conf *config.Config) (*Server, error) {
 	if err != nil {
 		return nil, err
 	}
+	for _, t := range topics {
+		if firebaseSubscriber != nil {
+			t.Subscribe(firebaseSubscriber)
+		}
+	}
 	return &Server{
 		config:   conf,
 		cache:    cache,