If the area around the 10 board is flooded, AND the ball you have won't hook there, but is too much for the dry area outside, around 5 board, you've described your own possible solutions.
1. Use more speed to play 5 board as the break point or use a milder ball to get there so it reacts less trongly off the breakpoint area.
2. As Ragnar started to suggest, play a breakpoint just inside of 10 board, the flooded point. The ABC shot is often like this or often needs to be played like this. Sometimes you need a slightly stronger ball and play a fade shot (small hook playing inside 4th arrow or where it is comfortable using whatever ball you have, using the 11/12 board as a breakpoint.
3. Use a stronger ball and play a small hook around the flooded area.
4. Watch what successful scorers do to go thru or around this flood and imitate them.
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