Agree that prob runs on some form of Unix which is less memory hungry than fully fledged Windows but if the RAM, Processor and DSP are not beefy enough, the architecture is not efficient or resources arent allocated properly then it doesnt matter what the underlying OS is.
And this brings into question the whole battery life also - how many electronics have we had with rechargeable batteries that are just shite or become shite after moderate use… My iphone to start…