Using SDL?
Well, i don't see why anyone would use SDL when librarys like SFML has been released, but... Using SDL as a "base" looks really weird to me, especially considering that fact that it's 10 time slower for certain operations than other library(yeah, still talking about SFML).
Weird. Take something slow and make it slower. Weird.
I'm sorry but you absolutely have no idea about what you're talking. SFML uses OpenGL for its 2D stuff whereas SDL is purely software based. That's probably what makes you think that SFML is faster. FYI, you can use OpenGL with SDL too.
I guess he's just saying that hardware accelerated rendering is faster than software rendering.