If you plan buying a new laptop in future, and plan to run CPU intensive apps (like Dolphin), avoid at all cost the ultra-low voltage models (they generally end with an U or Y in the product code, like your current i3-3217U). If your budget is low, an i3 CPU with 3 GHz or more may handle the games you mentioned (except for Zelda TP and multiplayer in Mario Kart Wii). I'm unsure about the Mario Sports games, through...
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 16 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
