You can put points into Driver Coils to be faster in sector space.
It's making the MACO engine nearly as fast as the Borg engine, and the Borg engine approach almost as fast as slipstream.
I think with a fully maxed driver coil and Borg engine equiped you can get her to Transwarp 30 almost during Slipstream.
Also, the new Chimera is just naturally faster in sector space. When combined with the above, it's really fast.