You might want to pull the slide back about a foot.
Still a lot safer than Yosemite Sam and Bugs Bunny’s high diving act.
The slide must go into the deep end.
Bugs Bunny in “High Diving Hare”http://www.220.ro/desene-animate/Bugs-Bunny-High-Diving-Hare/lJhGgoEIoy/ 7 Minutes 32 Seconds
Or you could just move the slide back.
Maybe a little sandpaper on the last 3 feet would slow you down a bit.