For galactic view, use the pause button whenever you can--it'll make reacting to things and queueing up builds much easier. As for the unit movement speed, Tattooine is one of those annoying maps where you need high-speed units like AT-RTs or HMPs to effectively contest because the map is just so big, but in space combat, as far as I'm aware the unit movement speed of most non-capital ships is roughly equivalent to EAW speeds (Venators and Providences are faster than ISDs, I believe). You might want to consider hyperspacing in ships where you want them by having a leading ship, since that'll allow you to bring in ships closer to the objective.
The_Great_Rice_God
Caleb joined
The great rice god giveth, and the great rice god taketh.