I think would be a bad idea increase cruise speed like that... imagine using a Battleship/Carrier trying to catch someone inside a field.... ouch.... OUCH.... OOOOUUCCHHHH MY SHIELDS DOWN!!!
Would be uncontrolable hitting everything constantly hehehehe...
About TradeLane bug... really rare in my case that bug, not sure if it is because I use internal cockpit view (without cockpit interior) and aiming perfectly to the center of the tradelane ring... in those cases you are stuck and/or unable to dock... do the same, but hold strafe right or left... that works great for me.