Color/brightness change lag
* **Please explain your feature request in a one or two sentences.**
Ability to set color and brightness at the same time.  Currently color and brightness commands are issued one after another.  


* **Is your feature request related to a problem? Please describe.**
I have an H6154 light strip connected by bluetooth.  I have an automation that changes the color and brightness of the light strip.  When this automation is triggered, the brightness and color change one after another, with a several second gap in between.  


* **Any particular Govee devices that this relates to?**
Problem occurs with H6154 RGB light strip.  


* **Anything else?**


