This is really impressive in a lot of ways - very polished.
Speed isn't your problem it's the horizontal scrolling. Constantly shifting left and right is tiring and makes it hard to focus. I would do two things to fix this.
1) Implement a simple 'push' scroll where the horizontal movement only kicks in when the bearing is in the left or right 20% of the screen. This means if you simply let go of the controls the screen will stop scrolling where the gap is less than 60%.
2) Auto-detect the width of the current gap (the two extremes of the bearings horizontal movement) and set the camera to simply point at the mid-point. This will deal elegantly with gaps up to a full screen width. If the gap is bigger then fall back on the push scroll - or simply don't have gaps that big.
Speed isn't your problem it's the horizontal scrolling. Constantly shifting left and right is tiring and makes it hard to focus. I would do two things to fix this.
1) Implement a simple 'push' scroll where the horizontal movement only kicks in when the bearing is in the left or right 20% of the screen. This means if you simply let go of the controls the screen will stop scrolling where the gap is less than 60%.
2) Auto-detect the width of the current gap (the two extremes of the bearings horizontal movement) and set the camera to simply point at the mid-point. This will deal elegantly with gaps up to a full screen width. If the gap is bigger then fall back on the push scroll - or simply don't have gaps that big.