Playable ads cocos creator optimizes files when exporting to networks (minter, iron , applovin)

playable-build-tool and
PlayableAds v1.2.3
Currently I have used these 2 tools to make playble but I have a problem about optimizing the size of the file when exporting:
i have 1 projet of unity vs luna , i took all unity assets to test build and it produced a very heavy file compared to untiy
unity → luna :
minter : 700kb → 1.5mb full
applovin and iron : about 300kb bigger than minter
cocos build file : minter : 1.5mb → 1.8mb
applovin and iron : 3mb → 4mb
I have tested the 2 tools below and the results are the same
and to run dc ads in networks, it must be lighter than 2mb

You can try this website, which can generate demo files in line with various channels, called smartad demo ad production platform. The platform can directly compress demo files

Which version of creator you are using now? You can try cocos creator2.4.10 to build playable ads project, the generated project will be smaller than the creator3.x.