Watch this in 1440p
Upscaled from 240x160 to 2160x1440 (Integer scaling)
Right-click the source (game capture or window capture) - Scale Filtering - Area
Don't forget to resize the source but keep the ratio
example Pokémon FireRed runs at a resolution of 240x160, and my monitor is 1440p.
So I resize it to 2160x1440.