I play an 18th Level Sorcerer. Their casting time is crazy fast compared to a Wiz.

I am planning to create my next Toon as a Cleric (after I Heroic TR in a few weeks). Is their casting time like a Wiz? should I get Quicken Spell Feat?

I play solo, and am planning a combo Caster-Battle Cleric, 2nd Life, Sorcerer Past Life, Halfling (which I already have Loot/Daily Roll Tomes for +2 Str, +2 Dex, +2 Con, +2 Wis).

I am looking for a challenge and have always been partial to Halflings. Yeah, I know a Human is the best Cleric, not my style.