Outer wall speed vs number of objects

[overld]

Hello all

I encountered something weird, for example - if i place one object on the plate for example 20x20 cube and slice it , outer wall speed will be various mostly from 77mm/s to 150 , then when i place 4 the same cubes suddenly the outer wall speed gonna be something around 190 mm/s but constant for all height of the model.
Using 0.20 standard profile with outer wall speed set do 200mm/s

Can anyone know how to print just one object with the maximum constant speed ?
I dont get it why speed of outer wall raises when i add multiple models on the plate and getting down when reducing number of objects. I wanna print one object with maximum outer wall speed to avoid various slower speeds.

[byMH62]

In your filament settings, read about “Slow printing down for better layer cooling” setting. A single small object will overheat at top speed. Bigger objects or multiple small objects have less of a problem as they have time to cool down between layers.

[overld]

Thats what i wanted, thank u very much. Unticking this option solved my problem.