Default Markdown Preview Mode in Agents (Windows)

Feature request for product/service

Cursor IDE

Describe the request

When opening a Markdown file in Agents for Windows, the preview mode is enabled by default. For large-sized Markdown files, this will cause significant IDE lag and performance stuttering.
We propose the following improvements:
1、Optimize the overall rendering performance for large Markdown files;
2、Automatically enable or disable preview mode based on file size;
3、Add a dedicated configuration option to allow users to customize the default display mode when opening Markdown files.