Bonus Tile: On
Time Attack: On
Word Find: On
Banned Letter: Off
Bonus Tile gives a different tile a multiplier value a few times per minute. Combine that with having all the answers on screen and getting a couple extra seconds per match and you should have no issue unlocking this achievement.
There are solvers online that will put the list in an easier to solve order (For example http://boggle.wineverygame.com/boggle/helper.pl
)but then you lose time typing them in and looking back and forth.
Additionally solvers ALWAYS contain words the games do not and quite frequently word games will include words that the solvers will not.