New boat question.

Posted on here a while ago about my new purchase. 2017 MB Tomcat F22, raptor 400. Having lots of fun on the boat so far, there are some issues with the boat that are concerning considering it is brand new. This is my first time owning a NEW boat so was just curious if it's normal to have a little issues, or if I should be concerned. Any feedback is greatly appreciated.

1) RPMs seem crazy high. Surfing or wakebording, I'm running 4500-4700 RPMs. Consistent. And even sometimes get as high as 5000. My dealer said that's within range, But that seems high to me. We ride pretty much at sea level. Prop 2275. Not sure I have enough space to add a bigger prop.

2) MIL alarm keeps beeping. All gauges seem fine and it doesn't go into limp mode, but something about a red beeping alarm is concerning.

3) 2 of my tower speakers and one cabin speaker stopped working. I have four tower speakers, xm 9s, The middle two stopped working. I swapped the outer speakers with the inside ones to determine it is the connection and not the speaker itself. But not sure where to begin, is it the wiring? Or is it something on the amp? Or is this something I should just send back because it is new in should be under warranty? Or should I just problem solve myself .

4) I try not to pull on straps for the back compartments, just a habit I guess. But I do have people in the boat who will grab the straps because it is there and it seems like the logical place to grab, but I had one rip off already.

5) cav plate almost seems useless on this boat. On my old boat , 03 Supra launch ssv, the wake plate helped shape and Cleanup both wake and Surf wake. On this boat, if I use the Cav plate at all
It is just pure wash. Destroys any resemblance of a wake.

None of this keeps us off the Water and the boat produces phenomal wake and surf wakes. But for new boat I am just curious if these are all normal. Or five should be calling my dealer or troubleshooting myself. The problem I have is taking it to the dealer knowing it's going to keep me off the water for a little bit . Any input would be greatly appreciated