Hi. I'm planing to switching my currently 16 GB SD for a 32 GB card. I heard the bigger the SD, the slowly the 3DS will load everything, is that true? Anything i should look for? I'm using a SanDisk 16 GB SD (Class 4), and didn't had any problem, so a Class 4 32 GB card will do for me? Model: Old 3DS (the original model, not XL).