High CPU usage even no addons?

Hello guys! I have a trouble ;_;
It is normal that… GMOD uses high CPU usage like this? Or there is something mess up with the GMOD? o_O

Here is the result when I use stats command


CPU    In_(KB/s)  Out_(KB/s)  Uptime  Map_changes  FPS      Players  Connects
94.36  5.44       3.59        54      1            67.64    1        2       

There’s no CPU usage difference within there is any addons or no addons .-.
In Task Manager, hl2.exe uses >13% CPU usage (which uses a full core of 8 logical cores)

Btw, the CPU peaks even when on the main menu ._.

Anyone can help me? ;_;

OK, more analyzing…
with Nvidia Geforce GT 745M


CPU    In_(KB/s)  Out_(KB/s)  Uptime  Map_changes  FPS      Players  Connects
113.88 5.75       2.91        2       0            246.25   1        1       

with Intel HD 4600


CPU    In_(KB/s)  Out_(KB/s)  Uptime  Map_changes  FPS      Players  Connects
34.09  5.77       2.58        2       0            66.51    1        

Btw, my laptop specs :
Intel i7-4700HQ 2.4 GHz
Nvidia Geforce GT 745M
4GB RAM

:cry: