Issue with Word Length when using chunks bigger than 1

[Sleepful]

Using chunks of 4 words with wordlength algorithm seems to go at the same speed per slide as it goes for single words per slide, when a slide should take longer because it's more words. So trying to read 300 wpm with chunks of 4 words using the wordlength algorithm takes about 1/3rd of the time that it takes to read the same text at 300 wpm with chunk of 1 word with the same algorithm.

I tried to read the code and see where the problem was but it's really hard when you have 1 .js file with over 1400 lines of code, it's not clear when variables/funcs are called or for what purpose :(