"No, it's fast."
Sorry for being a bit sarcastic here, but when stating that something is "slow", please provide some valid arguments + basic details, for example:
- which version of C4D you are using
- on what OS
- what is your CPU model?
- how much RAM is installed vs used?
- what exactly do you mean by "slow"? Is it few seconds, 20+ seconds, or maybe minutes?
- do you mean the viewport fps, or maybe it freezes, or something else?
- what exactly do you mean by "many objects"?
- what kind of objects?
- maybe you can share a scene? or at least a screenshot?
We will be happy to look into this once we know more. Thanks in advance.