What are the system requirements to run them?

So far I can play gen 6 and 7 on citra fine, not super fast (specially gen 6) but decent.

However I recently tried LGE and it crashed right when showing basic controls and shit

Am I doing something wrong, or it's just that a high-end pc is needed? Is it too far resource-wise compared to 3DS games on citra?

pic unrelated