To increase the Flash programming speed, you can use initialization files from pre-configured winIDEA Workspace Examples.
1. Download winIDEA Example Workspaces.
2. Select a suitable Workspace.
3. The initialization file is by default added in Hardware | CPU Options | Initialization before Programming | Initialize field.
4. Make sure Reset CPU after Download is enabled.
5. Download the initialization file, customize it, and use it in your project.