The biggest complaint against ultra-compressed repacks is the "install tax." Some repacks can take hours to decompress, pinning your CPU at 100%.
Historically, repacking required massive amounts of RAM. A repack might fail on a system with 8GB of RAM because the decompression would overload memory. repack by rg catalyst better
To clarify:
Do not install the game inside Program Files or on your Desktop. pinning your CPU at 100%. Historically