Right click on desktop, select Properties.
Tab all the way to the right says Settings. Click on it.
Bottom right is a button that says Advanced. Click on it.
In the new menuboard that pops up, there will be a tab for your video card. Click on it to bring it to the front. Mine happens to be a GeForce FX5900 Ultra.
Look through your settings till you find Antialiasing and Anisotropic Filtering. Make sure they are set to Application Controlled (usually a check box at the bottom when you highlight that setting control). Make sure Vsync is set to Application Controlled.
Exit out and start Aces High, see if it made a difference. If not, there are other things to try.
By setting these options that have it to "application control" you are forcing the video card to operate at the settings the game thinks is optimal, which may be far lower than what you set them at yourself.