Bosch WAN2427SPL Vario Perfect Serie 4: Rinse/Spin/Drain Cycle Operation and Speed Control

I have a Bosch WAN2427SPL Vario Perfect Serie 4 washing machine. I wanted to rinse my previously hand washed shirts in the washing machine. I put the laundry in the washing machine and set the knob to Rinse / Spin / Drain. The display shows the duration of the set program, plus the icon of the inserted laundry and the closed door of the washing machine before opening it too early and it is permanently on Water plus (this should be the case in the set program). I turned on the washing machine with the Start / Pause button and the washing machine started to work. So, somewhere 10 minutes before the end of rinsing (rinsing time depends on the amount of laundry inserted), the washing machine started spinning, where it was spinning slowly at first, and suddenly it was very quick (unless spinning was a maximum of 1200 revolutions or even more) to the end of spinning 2 minutes before at the end of the rinse, the washing machine slowed down the spin speed, the spin itself stopped and after 2 minutes, rinsing was completed.
When selecting the rinsing program, when the washing machine starts spinning, does it have to spin so much - it seems to me that the speed is over the maximum 1200 revolutions, or should it be like this when spinning regarding the rinsing program (according to the instructions for the washing machine, I read that when rinsing spin speed is default)?
If I wrote in the wrong section, please transfer to the appropriate section.

lukcio28 wrote:

- it seems to me that the revolutions are above the maximum 1200 revolutions, should it be like that when spinning regarding the rinsing program (according to the instructions for the washing machine, I read that the spin speeds are default for rinsing)?

First of all, you don't know if it's 1200 because you would have to actually measure it. You don't seem to do it. Second - it sets the software to 1200 by default, but you can change it yourself or not?

I can change the spin speed, but I decided that for now it will stay as it is, because nothing bad is happening. Better if the washing machine starts to spin quickly during spinning, because then it spins the laundry better. I noticed that after 1 hour from rinsing, washed shirts were dry and can be ironed