Sorry for more newbie questions.

I'm playing the Yor this game for the first time.  I read that the Super Isolationist ability slowed foreign ships down to 3 squares per turn, but it's effecting my own ships too.  I'm not that far into the game, but I'm seeing it happen even on ships equiped with 2 Ion drives.  To make it worse, sometimes it looks like ships from other species are moving faster than mine do.

This is what the manual says about the ability:

 "Super Isolationist: Can colonize barren worlds and no foreign ship can travel more than 3 spaces per turn in their area of influence."

Is there a technology I should have researched, but may have overlooked, to get this very annoying limit to stop effecting my ships in my own space?  Or something else?  I'm playing an Ultimate Edition sandbox game in a large galaxy at Challenging level, if that matters.

Sort of related, it may be my imagination but it seems to me that fleets move my slowly than single ships, and fleets with warp bubble 1 support move at around the expected speed for the engines used?  Is this the way it works, or am I off my meds again?