I used to do the CodeWarrior installer for Freescale/NXP embedded product lines in the 2010s and InstallShield became completely unworkable as a tool for a massive dev tool. Even today, a 400MB+ installer is difficult, let alone in the age of mechanical HDDs.

I had to choose between NSIS and Wix - and while native installer formats were clearly the future even back then, the performance and compression advantages of NSIS were so great that it was a clear choice. Solid LZMA was simply impossible to beat by any deflate/zlib/mszip oriented tool.

The joy of the dev team was palpable, the new installer was about 60% smaller and installed in one third the time.