Tar is very slow

[madebr]

Hello, we're using the devkitpro/devkitarm docker container at libsdl-org/SDL to verify Nintendo 3DS support.

I recently noticed CPack generation in the n3ds job is relatively slow.
In the n3ds jobs it takes around 30 to 40 seconds to generate a binary package.
Other platforms do this in 1-10 seconds.

Bug Report

What's the issue you encountered?

Slow CPack binary package generation on ci

How can the issue be reproduced?

Build SDL3 on ci, or in a devkitpro docker container

git clone https://github.com/libsdl-org/SDL /tmp/SDL
cmake -S /tmp/SDL -B /tmp/SDL-build -DCMAKE_TOOLCHAIN_FILE="${DEVKITPRO}/cmake/3DS.cmake" -DSDL_DISABLE_INSTALL=OFF -DSDL_DISABLE_INSTALL_CPACK=OFF -DCMAKE_BUILD_TYPE=Release
cmake --build /tmp/SDL-build --config Release
cmake --build /tmp/SDL-build --target package --config Release

Environment?

• What host OS are you using?

Latest official docker container (GitHub actions)

Additional context?

N/A