Gamecube was the slowpoke of that generation? That sounds wrong. Official specs suggest Dreamcast < PS2 < GC < XBox. But it seems to be generally accepted that

Gamecube was the slowpoke of that generation? That sounds wrong. Official specs suggest Dreamcast < PS2 < GC < XBox. But it seems to be generally accepted that XBox specs were a bit overblown and in practice GC and XBox were almost equal in overall real world results. (And the weak PS2 clearly won that round anyway.)