backoff on sync and reduce starting multiplier

management/server/account.go

@@ -202,7 +202,7 @@ func BuildManager(
 	if err != nil {
 		initialInterval = 1
 	} else {
-		initialInterval = int64(interval) * 10
+		initialInterval = int64(interval) * 2
 		go func() {
 			time.Sleep(30 * time.Second)
 			am.updateAccountPeersBufferInterval.Store(int64(time.Duration(interval) * time.Millisecond))

management/server/grpcserver.go

@@ -163,6 +163,8 @@ func getRealIP(ctx context.Context) net.IP {
 // notifies the connected peer of any updates (e.g. new peers under the same account)
 func (s *GRPCServer) Sync(req *proto.EncryptedMessage, srv proto.ManagementService_SyncServer) error {
 	if !s.syncLimiter.Allow() {
+		time.Sleep(time.Second + (time.Millisecond * time.Duration(rand.IntN(20)*100)))
+		log.Warnf("sync rate limit exceeded for peer %s", req.WgPubKey)
 		return status.Errorf(codes.Internal, "temp rate limit reached")
 	}