The charging power limit is not due to other electrical loads; those are tiny compared to the main battery charge power.Idk what is MG's problem when it comes to charging cuz can't really see what things are taking kW or what is happening only phones shows charging power nothing else.
Let's be fair mg need to step up in everything idk what they are even doing with the car and the software I had mg for 1 year now ngl the car made me speeches when I chat with other about ev car there isn't anything good in that car or that works that I can flex with other EvsMine charges slow on DC charging now in Winter also, even if you preheat the battery 1 hour before charging.
MG need to step up their charging speed on newer models they are last on that if you compare against other Chinese cars like Xpeng, Nio, Byd.