You have two options to works perfectly...
1- Use a M3 Real 4.4 and still freezes 2 or 3 times in a day or...
2-Use
Rudolph's patch or Rudolph's patch+English v3.0 (Raquib)
*NOTE: In the moment you SAVE with any rom with rudolph patch applied, the savegame won't works with the original (clear rom) or any version who didn't have rudolph...