[Feature request] compiling and rendering with multi workers

[lslzl3000]

Clear and concise description of the problem

Try to build with 1000 .md files
It takes more than 9min to compile and render~~ too too slow

Macbook Pro M.2 2022, the cpu performance is good enough
Should be much faster

Suggested solution

Looks like the build process is working in 1 thread
can we enable multi-workers?
e.g Start build.ts in N workers, each build 1/N numbers of pages

Alternative

No response

Additional context

No response

[lslzl3000]

Also the build process would cause memory leak
Have to work with --max_old_space_size=8192

Is there any better way to manage node memory?
e.g. release objects after compiling/rendering each page

[lslzl3000]

Tested with VitePress, same 1000 .md files

!! VitePress only takes 15.9s !!

to build and render all files

also fired bug report in #994

[meteorlxy]

Duplicate of #994