If you are going to do this, then the total amount of ord to actually kill the CV needs to be increased, perhaps doubled.
First 8K cripples rather than sinks the CV. It lists, has deck fires, whatever -- basically halts flight operations. Another 8K damage from that point to sink and start the clock on the respawn.
The auto-repair (representing damage control personnel) may restore flight operations before the next wave of enemy can sink the CV (shades of Yorktown at Midway).
But without increasing the amount of damage to actually sink the CV, then all you are asking is for CV battles to be even shorter than they tend to be today, which would not be good for gameplay IMO.