My main comment is that I don't know if it is better to solve the level fast, with many words, or with longer words. My second comment is about what dictionary exactly is used, when words like "spore" or "spool" or "seep" or quite a few common words are simply not allowed.
Currently dictionary is just txt file having around 8k common words, so it may not contain those words. I will definitely change the dictionary with better version and yes having longer word will solve the level fast, I will think about this may be making word configurable or as level progresses we can have more longer words