The sad thing is that it probably isn't even the text translations that takes the longest for these sex scenes, but the shitty Microsoft Paint jobs they call "decensors" that they paste on the originally pixelated crotches.

It's obvious that they couldn't get the original artists for a lot of the depixelation. So a lot of them are just ugly skin-colored, anatomy-defying pastel smudges where the vaginas or penises are supposed to be. This is painfully apparent with girls drawn by one of my more favorite artists, like Wakazaki's Christmas Rose.

Additionally, I don't know if anyone has noticed but sex scene CGs on Nutaku are a lot more blurry and compressed looking compared to viewing the same CG on DMM's client. Whatever image software they are using to edit is too terrible to even retain the original image quality.