Async loading

Hi,

loading async is best done by a third party plugin like this one:
https://www.ads-software.com/plugins/async-javascript/ Many other cache plugins liek W3 total are also offering this function.

Doing it this way allows us to develop in best possible compatibility manner and follow the wordpress codex of developing plugins.

About the second issue: We are already thinking if and how this could be done and if its worth the efforts/saves loading performance.

If you have any technical hints or benchmarks which proves that loading a modal form dynamically is better please let us know.

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