Edited!
I assume since this flash suit concept I made is probably compatible with Jarvis's inputs.

Like this:
A bad guy comes in, "I'm Demon Shinobi and all of you will die!" Slipstream comes in with her speed but couldn't even dent his body. Then via communication from an external source e.g Jarvis.

Jarvis: "You have to exactly hit him at Mach 1.2" 

Anyhow it doesn't have to be some robot making inputs, it can be how Future Bruce was to Terry.