increase stroke idle time

src/app_events.cpp

@@ -84,7 +84,7 @@ void App::tick(float dt)
     {
         auto t_now = std::chrono::high_resolution_clock::now();
         float dt = std::chrono::duration<float>(t_now - canvas->m_canvas->m_disrty_stroke_time).count();
-        if (dt > 0.1f && canvas->m_canvas->m_dirty_stroke)
+        if (dt > 0.75f && canvas->m_canvas->m_dirty_stroke)
         {
             canvas->m_canvas->m_dirty_stroke = false;
             LOG("rec tick");