Hi Marek!
Thank you for answered. I have a single project in workspace!
When, I install the KDS (first time) the memory consumed is there about: 287,5 MB and 4% CPU activity . Thus, the KDS is open again the memory is 290,1 MB, but the activity CPU is increased for 26,0%!
After this I can't to work with KDS because stay very slow.
I attached the Windows "Task Manager" when I chose the CPU in "Devices".

I'll try to find a solution for my problem, than I installed the KIDS in other notebook. This notebook hasn't any engineering software previously installed (for example Eclipse).
Unfortanately I noticed the same berhaviour, that is, to open the KDS after instalation it is extremely slow.
Below is the screen of another notebook:

Thank you for your support!
Regards,
Arnaldo