Rebel Galaxy Outlaw

I can hold a boost of 999 (speed) with my Cyclic burners without even adjusting anything into Engines (999 seems to be the cap) and I still get killed by enemies I’m trying to run from, even in a Coyote with the highest end hull and level 4 shields. I’m sure those little fast ships can still keep up with me given the 999 speed cap, but I’m not really clear on how to escape - and trying to beg for mercy is really not reliable and even if it works, it takes precious seconds to find out.