I'm currently building a new house and have gone with Vynco Fusion lightswitches as the electrician could do them the same price as the PDL 600 series. Fit off was earlier this week and I went in to test out the switches yesterday. I noticed that turning on the lights, there is around a 1 second delay before the lights come on. Is this normal for Vynco Fusions? As our current house has PDL 600's and the lights turn on instantly upon switching on.