Dragon Tiering speed boost

It is absolutely crazy how long it can take to rank up dragons in the later tiers. Why not add the ability to speed up tier speed to the Dragon Spire and Dragon Alter's? Could be something like...

Dragon Spire
Level 9 - 5%
Level 12 - 10%
Level 15 - 15%
Level 18 - 20%
Level 22 - 30%
Level 24 - 40%
Level 25 - 50%

Dragon Alters
Level 9 - 1%
Level 12 - 2%
Level 15 - 3%
Level 18 - 4%
Level 22 - 6%
Level 24 - 8%
Level 25 - 10%

Overall the max bonus at th24 would 112% and at th25 the max would be 150%. Isn't a ton but at least it is something.