Gold gathering is way too fast in this meta.
There are 2 changes that increased gold differences a lot.
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first turret and turrets remuneration.
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gold on the canon minion has been increased a lot.
If you gather gold faster you'll get full stuff way more quickly. Having too much stuff at a certain level in early mid game is too impactfull. That's one of the reasons why there is too much damage. The increase of gold from the canon minion is making a huge difference.