Skills and Super Ability of the Orcs.

Orcs don't need defense because they lose Rage, which increases their attack. Orcs shouldn't defend themselves.

They don't lose anything; they can move back and forth between adjacent tiles... The defense skill adds defense to units as such, regardless of whether the defense action is used or not (defense perks also, except for the "Stalwart Defense" perk).

defeat the enemy in the shortest possible time

I don't like fast games; I like to play with full upgrades... When we play, we even agree on a non-aggression period after which combat can begin...

So, in principle, you can develop a Sorceress without any problems... I would like to know what is better after all...
Orcs are not like the Inferno dogs/goats or the forest centaurs. There are no very slow creatures; they are not very fast, so maybe it's better to take a Sorceress instead of some perks like a speed aura?

P.S. Does the "Darkness Shroud" spell help against mind control/berserk?

Regarding the lack of space...
Attack
Leadership
Luck
Defense
Machines/Logistics (in principle, in our games, logistics and ballistae are mainly for sieges)