Is this a better.version of the Kalam Cosmological Argument?

The KCA has been widely popularised by William Lane Craig and many other Christians and for me I never really use the argument, because the first premises carry to much general package, so I have formulated a newer version of the argument and I wondered what you maybe thought about it

Premise 1 - The universe has a temporal beginning (i.e as observed by the Big Bang)

Premise 2 - A temporal cause must be outside of time

Premise 3 - The cause of the universe, being outside of time and capable of bringing about a temporal effect, must be a personal, uncaused, and immensely powerful agent who has the ability to bring about the origin of time, space, and matter.

Conclusion - That is what we call God