The beauty of the eCVT system is it allows the engine to operate at its most efficient rpm at any particular moment. So when you want to accelerate the engine rpm is almost instantly increased to obtain maximum power, which for your engine is around 5,5000 rpm. It doesn't have to slowly build up to that speed, or go beyond it and fall back down multiple times as you would with a normal transmission. The downside of the high and constant engine speed is the noise associated, the 'drone' as many motoring journalists refer to it as.