You have to use a capture card to get the picture of your wii on PC. If you want to play in real time, buy a lagless one. But it will probably don't look as good as Dolphin, because of the Wii video output and the cable.
What kind of cables are you using for connecting your wii to your TV ? If it's composite, it's no surprise the picture is bad. S-video or component cables are better, especially the last one, you can set the Wii to 480p instead of 480i.
Also, set your Wii and TV to 4:3, anamorphic 16:9 just looks terrible on modern TVs.
Some TV have a "non scaled" option that displays the picture on its original resolution, kinda like windowed mode you're looking for, it's worth checking out if your TV can do it.
Finally, even with the best cables, most TVs do a terrible job at upscaling 480p content, you can look for a high quality upscaler to do it before the picture goes to the TV, like the Framemeister or the OSSC (which is technically not an upscaler, but a line doubler).
Personally, that's what I use : Wii (set to 480p 4:3) -> component cables -> OSSC (480p x2 = 960p) -> HDMI -> My monitor (set to 4:3)
What kind of cables are you using for connecting your wii to your TV ? If it's composite, it's no surprise the picture is bad. S-video or component cables are better, especially the last one, you can set the Wii to 480p instead of 480i.
Also, set your Wii and TV to 4:3, anamorphic 16:9 just looks terrible on modern TVs.
Some TV have a "non scaled" option that displays the picture on its original resolution, kinda like windowed mode you're looking for, it's worth checking out if your TV can do it.
Finally, even with the best cables, most TVs do a terrible job at upscaling 480p content, you can look for a high quality upscaler to do it before the picture goes to the TV, like the Framemeister or the OSSC (which is technically not an upscaler, but a line doubler).
Personally, that's what I use : Wii (set to 480p 4:3) -> component cables -> OSSC (480p x2 = 960p) -> HDMI -> My monitor (set to 4:3)
From France with love.
Laptop ROG : W10 / Ryzen 7 4800HS @2.9 GHz (4.2 GHz Turbo disabled unless necessary for better thermals) / 16 Go DDR4 / RTX 2060 MaxQ (6 Go GDDR6)
Laptop ROG : W10 / Ryzen 7 4800HS @2.9 GHz (4.2 GHz Turbo disabled unless necessary for better thermals) / 16 Go DDR4 / RTX 2060 MaxQ (6 Go GDDR6)