On my decade old laptop `using Plots` (precompilation) takes a couple of minutes. Not half an hour but it may feel like that if someone is used to Python (or R) where imports are instantaneous. Though I think GP meant takes that much due to OOMs which may result in frozen or slow system.
A couple of minutes is expected. Even R and Python packages have to run the build processes for the associated C and Fortran codes, and those take similar time (or more for many packages). However, if a Julia package is precompiling for more than half an hour, that's not expected and I'd like to see a reproducer for this so we can fix it.
