No you got that right.
The mean (230.6) is prefectly on target so that is working.
The SD (24.7) is quite high.
The rate under the simulate button says that 83% of your runs are out of spec, this is because your SD on the simulated runs is so big. If you decrease the SD of your input variations you will see that rate go down. So you have a whole bunch of problems but lets talk about release angel as it is the biggest:
Release angel is a sensitive factor (the slope is steep in the range you have experimented). And your variability on release angel is big in that window as well, this means that you regularly get values on the low end of your range which results in low distance. So either you make your process less sensitive to release angel (design a tool/fixture or something more advanced like a self guided missile) or you have to make the variability of your release angel smaller (training, tool). If you can do this for all SD's on your inputs you should be able to get the output correct.
Welcome to you first capability analysis