asp.net core – Slow builds in Visual Studio

I have a web app solution in Visual Studio 2022 that always takes at least 5 minutes to build, and I need a way to speed this up.
In the solution I have a data project that includes my EF Core migrations, and my guess is that it’s the number of migrations (nearly 1000 at this point) that is causing the slow builds.
Is there an easy way to exclude the migrations namespace from a build action?
Or is there anything else I can do with the migrations to mitigate their impact on build times?