Help handling tracking codes/pixels

We have quite a few of woocommerce websites which i design/develop and i also take care of optimising things as much as possible with cache, compress images,… I test it and i try site speed tools like Pingdom speed test and the sites load around 800ms for 1MB/60 requests (we have quite a few images and plugins that add js/css).

But after the site goes live and i give it to our marketing people, they put TONS of tracking codes and pixels (i made them an ACF field for either head/footer locations of these) in it and the site starts to load in 2.8 seconds/150 requests in Pingdom.

Is there any way Sage has a trick up it’s sleeve i could improve this? Anyone has any experience with these?