The SSD was the example for a modern HDD. It seems you really didn't understand what we were talking about. I'll try to sum it up:
1. the game loads character data in sync which causes the game to stop for that moment
2. there's many small files for each character that needs to be loaded
3. a fast SSD fixes this issue
4. an async method would fix this too and SE should implement that
Nobody ever said you need an SSD to play this game with full fps. That is one aspect. There is also other things that make the game feel sluggish:
- the delay for actions
- the high polygon count
- etc.