No problem lol, if you was enjoying the vape at 55W though keep it there, unless you are finding it is better reduced to 45.
It would be worth installing Escribe from Evolv here -
https://downloads.evolvapor.com/SetupES.exe
This will install Escribe, and allow you to connect your mod to your PC, and set up your mod for a perfect vape, exactly as you like. You can also then update the mod with the latest firmware for the best possible performance, and to remove any bugs with older firmware.
It seems though your mod is working well, when you mention the first month did someone set it up in Escribe for you? The preheat and punch is one of the only things that matters, which you can't change on the actual mod and you may want to change, apart from very deep settings most people won't ever need.
Like you can play an electric guitar without being plugged in, and still enjoy it, but once you plug into an amp you can really get going!
That is the only comparison I can think of, I hope you get the idea