@Myong has stood a good point. However, when I used to quest convert, I got this all the time simply because the texture quality was too low. Try upping the texture quality to the next ones above it and see if this fixes your issue!
You are going to have to try to mock the blendshapes honestly. I never tried copying the pudding blink yet on Airi since I use Cam's blink instead. I try experimenting with it later. I will say take the pudding blink's fx and put it on Airi's controller and then try recording the animation as closely as you can with Airi's face blendshapes. I recommend doing this with another avatar that is compatible with pudding blink so you can visually see and compare them side by side. Airi is made by the same creator who made Moe, so I recommend using Moe's pudding blink as there is a possibly they use similar or some of the same blendshapes.
