In Legends, it's explained that Windu only won thanks to Vaapad and whatnot, and even then it's still possible Palpatine threw it.

But in Canon, we have no indication of such, and it's unlikely Vaapad works like it did in Legends anyway.

So, is Mace legitimately capable of beating Palpatine in Canon in the fashion we see in ROTS, or did Palpatine throw the fight?