Clean the solution: Sometimes, cleaning the solution can resolve performance issues in Visual Studio. To do this, go to Build > Clean Solution.
Reset Visual Studio settings: If your Visual Studio settings have become corrupted, you can reset them to the default settings. To do this, go to Tools > Import and Export Settings > Reset all settings.
Delete the suo file: The suo file is a hidden file that stores Visual Studio settings. Deleting the suo file can help resolve performance issues in Visual Studio. To do this, close Visual Studio, locate the suo file in the solution folder, and delete it.