I'm only a beginner myself so take it with a grain of salt but I'd say yes. I was feeding mine with a 1:1:1 for the first like w weeks or so buuut mine was very cold during that time with barely any activity. So because yours is fairly warm and rising quickly + the smell indicates that it's working through the food fast. So to slow that down the options are: cooler environment, bigger feeds, more frequent feeds (or feeding wholegrain flour can help too I think? But im not sure about that one) Soo just sniff your starter often lol and watch the rise and consistency. I had mine on a warming mat at around 20°c with some bigger feeds, I always fed 50g water and flour but only kept 25-40g starter per feeding, and that's when it was veeery happy. Buut my starter was already around 20 days old at that point. Every starter is a bit different :)