Thanks for sharing your concerns about the Web SDK Optimizations.
Our team is aware of this and working on a few optimizations. We actually wrote a blog post about this here:
https://onesignal.com/blog/core-web-vitals-onesignals-web-sdk/
At this time, we don’t provide another other “light-weight” SDKs. Overall, our SDK should not be too costly to your site’s performance.
As we continue to improve the Web SDK those new changes will go into effect automatically.
Thanks for understanding and contact support@onesignal.com if you have any additional questions.
