Faster speed for boosted spells and heroes

The ability to queue spells in the forthcoming update is huge, but when I sit down for two hours and boost everything do faster play, my basic troops are always ready much sooner than my spells or heroes. To be fair to the person who is dropping up to 90 gems (10 each on 4 barracks, 2 dark barracks, spell factory, and both heroes), the spell factory and heroes should boost at a higher speed. Even if the speed was increased to 6 times the normal rate, the difference would be huge.