i tried some testing using other upscalar (upscaly), from what i can see. it produce less pixelmelts, but for some reason though it smooth things too much the tone just gone and there's jagged line. I haven't dive into the settings tho...
so would it be better if i continue with my current settings or change? if you know how i can covert the png to jpg, which makes it possible for me to use the old settings, please tell me!