ModuleFederationPlugin makes the build really slow

[HaasStefan]

Describe the bug

I am working on a massive Angular codebase with a custom webpack config. We already have slow builds by default and I am spiking on using Module Federation for incremental builds to improve build performance of our main app. However, I have found that using the ModuleFederationPlugin with just one remote and no shared config already adds so much overhead to the webpack build, that this scenario is infeasible.

	With ModuleFederation	Without ModuleFederation
Cold	37min	21min
Hot	17min	8min

I am using Webpack 5 and Module Federation enhanced v0.22.0

I have disabled split chunks when using Module Federation as that resulted in runtime module resolution errors. But besides that, the only difference is the usage of the ModuleFederationPlugin

Question: Is this expected in a large codebase, or is this likely a misconfiguration?

Reproduction

Used Package Manager

pnpm

System Info

-

Validations

• [x] Read the docs.
• [x] Read the common issues list.
• [x] Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• [x] Make sure this is a Module federation issue and not a framework-specific issue.
• [x] The provided reproduction is a minimal reproducible example of the bug.