Add a warning when windowSize is not set

connect/host.go

@@ -404,8 +404,10 @@ func (h *Host) connectHelper() (err error) {
 		if windowSize != 0 {
 			dialOpts = append(dialOpts, grpc.WithInitialWindowSize(windowSize))
 			dialOpts = append(dialOpts, grpc.WithInitialConnWindowSize(windowSize))
+		} else {
+			jww.WARN.Printf("WindowSize not set, this can " +
+				"cause network performance issues")
 		}
-
 		// Create the connection
 		h.connection, err = grpc.DialContext(ctx, h.GetAddress(),
 			dialOpts...)