Vibration at 308 gear shifts

Hello everyone and happy holidays, I have a 2011 308 1.6 automatic vti and it takes a long time when going from 3rd gear to 4th gear and the vehicle vibrates, is it normal?

Happy holidays. I think it's a fully automatic transmission since it's a Vti. The AL4 transmission is actually the smoothest gear 3 to 4 phase. It may be normal for it to take a long break. It decides according to the torque of the vehicle. But when you go straight, it gets shorter. It also keeps the break long when the bottom gas makes it. At this stage, when you take your foot off the gas slightly, the time to switch to 4 is reduced. You can try this.