It was designed to load instantly. You could have 16 different instruments running on an old Pentium 4 without breaking a sweat.
Historically, this software required a physical USB-eLicenser. If you're a long-time owner, keeping that dongle alive is the biggest challenge! Is It Still Worth It? Steinberg Hypersonic 2 [WiN]
The "Hyper-knobs" allowed for quick tweaking of essential parameters without diving into complex menus, making it perfect for rapid songwriting. Using it on Modern Windows Systems It was designed to load instantly