Does multiple scenes in exe-build share data files?

Hello. My question is concerning the exe-build and its’ performance.

If I create multiple exe-builds for multiple scenes that uses the same environment, will the performance differ (better maybe) if I create one exe-build for all the scenes?

Sorry if the question sounds confusing. Thanks to anyone who can answer this.

Each build is stand alone and self sufficient so by default the data will be duplicated. You can probably get around it using custom build steps if you have Pro but it’ll take plenty of manual work.