diff --git a/src/single_window/render.cpp b/src/single_window/render.cpp
index e079d64..51f159b 100644
--- a/src/single_window/render.cpp
+++ b/src/single_window/render.cpp
@@ -372,10 +372,10 @@ int Render::Run() {
                      ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoScrollbar);
     ImGui::PopStyleVar();
     ImGui::PopStyleColor();
-    if (!streaming_) {
-      MainWindow();
-    } else {
+    if (streaming_ && is_client_mode_) {
       ControlWindow();
+    } else {
+      MainWindow();
     }
 
     ImGui::End();
@@ -438,7 +438,7 @@ int Render::Run() {
         }
       } else if (event.type == REFRESH_EVENT) {
         if (stream_texture_)
-          SDL_UpdateTexture(stream_texture_, NULL, dst_buffer_, 1280 * 720 * 3);
+          SDL_UpdateTexture(stream_texture_, NULL, dst_buffer_, 1280);
       } else {
         if (connection_established_) {
           ProcessMouseKeyEven(event);
diff --git a/src/single_window/render_callback_func.cpp b/src/single_window/render_callback_func.cpp
index d3070a0..9b76976 100644
--- a/src/single_window/render_callback_func.cpp
+++ b/src/single_window/render_callback_func.cpp
@@ -180,13 +180,15 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, void *user_data) {
     render->connection_status_str_ = "Connected";
     render->connection_established_ = true;
     render->streaming_ = true;
-    SDL_SetWindowSize(render->main_window_, render->stream_window_width_,
-                      render->stream_window_height_);
-    SDL_SetWindowPosition(render->main_window_, SDL_WINDOWPOS_CENTERED,
-                          SDL_WINDOWPOS_CENTERED);
+
     if (!render->is_client_mode_) {
       render->start_screen_capture_ = true;
       render->start_mouse_control_ = true;
+    } else {
+      SDL_SetWindowSize(render->main_window_, render->stream_window_width_,
+                        render->stream_window_height_);
+      SDL_SetWindowPosition(render->main_window_, SDL_WINDOWPOS_CENTERED,
+                            SDL_WINDOWPOS_CENTERED);
     }
   } else if (ConnectionStatus::Disconnected == status) {
     render->connection_status_str_ = "Disconnected";