Honestly, the time required to learn skills should change completely... it should work more like this:

Current training time for a Tier 1 skill is 12 hours a rank or 108 hours total: 12/12/12/12/12/12/12/12/12

Instead of being a flat time for all 9 ranks, it should instead curve with something like this...

1 hour
2 hours
4 hours
8 hours
12 hours
16 hours
18 hours
20 hours
24 hours

That's 105 hours, which is practically the same amount of time but a much better curve for the game.

Because as it stands right now, having to wait literally DAYS just to get a single rank in a skill (+2% dmg to cruisers??) is kind of tedious and un-fun for me.