He used what was available at the time. For the original trilogy, that was practical effects.
The prequel trilogy was a bit more... Dodgy thanks to eagerly embraced CGI that wasn't fully baked yet.
People famously critiqued the reworked original trilogy due to various dubious creative tweaks. Like waking on Jabba and Jabba just having a funny reaction instead of how you would expect him to react.
I had this happen to me once.
A woman asked me what was wrong with some technical thing and I explain that everything is just on crack and that's why it didn't work.
A bit offended, she declared she could handle a more technical explanation than that.
My response: "Well I can't"