SketchUp 2019 is lagging as soon as start

Hi all,

My customer has problem with running SketchUp 2019 Pro.
As I mentioned it, his SketchUp is lagging from start.
His graphic card is up to date and CPU is also nice.
Intel Core i7-8750H CPU
Geforce RTX 2070

He doesn’t have any ruby.

What should I do him to use SU 2019 pro properly for him?

Any comment would be helpful.
Thank you in advance.

Perhaps, search the forum for " run as administrator ".