Speeding up will firm up the wake but also reduce the size unless you add weight. More weight up front = ramp & hardness, more in back softer & steeper.
Mine runs the V drive sacks and 2 6 gallon gas cans in the back (puny gas tank in the 205's), 6 pop bags in the cabin, stock center ballast, integrated bow sack and 14 pop bags in the bow walkway under the filler cushion.
About the slowest you can go fully loaded is 23.5 sweet spot is 24.5 to 25 @ 75 - 80 ft. Some ride it 85 @ 25.5. Great with 3 people, monster with 5 or more.
24.5 @ 75 ft.
25 @ 80 ft.