The music is a bit freezy and so is the screen in battle. Please help, how do i make it faster?

Current settings..
Pete's OpenGL Driver 1.76
Fullscreen 1024x768 32bit
r8g8b8a8
gfx card vram 128
offscreen 2
framebuffer textures 1
framebuffer access 0
alpha multipass
advanced blending
special game fixed (g4 polygon cache & odd/even bit hack)