Enel fucks up way more characters in the OP universe at that point than Skypeia Luffy does. Still true even if you take away his logia invulnerability (assuming he makes more effort to actually avoid attacks) - for example he still one-shots the likes of Sanji, Zoro and Wiper, which Luffy could never do. If you take away his DF attacks (so he only uses an unheated spear) but not his movement then who knows, he probably beats most who Luffy can beat, since he had the upper hand against Luffy still for most of the fight and against some faster opponents he probably still slowly beats or stalemates them since he can't hit them, but they can't hit him either because he always dodges, but they would be more open than him since he can see their attacks coming and counter, plus they'll get more tired than him probably, since they're reacting later than he is. Without any DF powers at all (so just haki), idgaf. Without haki or DF he probably sucks, but taking away his DF and haki is pretty unfair since his whole style would have evolved to be different, unless he's crazy.