Google Adwords + FB Pixel Expert for E-Commerce Website -- 3

We need google adwords & FB Pixel expert to translate our e-commerce sales

Currently we are getting 4X to 6X return on our google adwords + FB Pixel Spend

But in a month, 2 to 3 days are such that we get zero sales which we dont understand as we dont push any updates to the application so there is no correlation

We need an expert or a consultant who can help us to improvize this strategy and grow our return to industry standard like 12X