It is not the translation that does it fit right, it is the original text.
Although maybe it is just that the Bigger she is, the cuter she is. The proportions stay the same so, she would still be a loli, just a giant one.
(cocky face)If Ruko-chan was like this too, I believe more people would like you!!Ruko* 197 cm tall
* Loli body
* School swimsuit with thighhighs
* Randoseru