Naw definitely not
You get less loot from th's below you as you move up. 1 th below is 10% loot reduction, 2 below is 50%, and 3 below is 90% reduction.
It's best to just max your town hall up to th9 at least.
9 is lenient because of the 50 hero levels you have to do, and 1b loot you have to invest into walls.