Time attack should have a "I know it" key or button. Using it stops the animation but allows the slower typers to type those long words.. or was this game about typing speed and not about recognition.
If you take a look at the high scores, you can see its not impossible, actually its fairly easy! Just remember its always worth it to use a joker piece if that can get you quad symmetry since you get the joker back and more. Of course if you dont go for the bonus combinations, you are bound to lose.
 "Z-Rox"){kind=icon}
 "Ring Pass Not"){kind=icon}