Yes but it feels slower, idk maybz cuz this game has 60 fps animations while on wk it's far less.There are four options for speeds on DE: Slow (1.0x), Casual (1.5x), Normal (1.7x) and Fast (2x).
Casual is the default speed for HD and Normal is the default speed for UserPatch 1.5. I believe DE ranked games are played on "Normal" speed. So no, it is not slower than UserPatch 1.5.