SendBirdChatSDK v4 huge size increase

Hi SendBird team!
Thanks for your hard work in v4 release!

We went through your docs and assess v3 vs v4 of your SDK.
We found that in the newest v4, there is a significant size increase by 70%
Screen Shot 2022-06-21 at 16.13.28

As a dynamic library, this not only increase our download IPA size, but also app launch time.

May I know what caused this huge difference? I might be a good idea to support static library