> ... I eventually found that for non-trivial packages the "time-to-first-X" became painful ... Have you checked the TTFX in 1.9+? It is significantly reduced

> ... I eventually found that for non-trivial packages the "time-to-first-X" became painful ... Have you checked the TTFX in 1.9+? It is significantly reduced for various packages e.g. Plots.jl.