Which products should I change to make game faster?

I want to play Kirby 3DS games fast.
But my computer’s specs are so bad that It’s so slow to play the games.

== My Specs ==
Operating System: Windows 10
CPU: Intel® Core™ i5-3470 @ 3.30GHz 3.30 GHz
GPU: NVIDIA GeForce GT 740
RAM: 4GB
Citra Version: Nightly 1402

What should I change the product to for play the games fast?

Or can you recommend the specs for play the Kirby games fast?