Blade

Hi, I don't know if someone else has this problem, but ... Sometimes the game freezes the screen, but it is heard that the game is still progressing; I could overcome that by restarting the game. The big problem comes when I play with Flandre, since its gameplay does not have the autosave function, and when my screen freezes, I HAVE TO GO BACK ALL ITS ROUTE AGAIN. If only there was a way to save Flan's game every time I beat a Toha, but I can't see how to do it; if there was an option in the game to lower the image quality so that the screen does not freeze; or another solution like programs or I expect a 1.03 or something like that? Thanks in advance.