High cpu load on clear device

Hi.
Few days ago I received a new device - RB2011UAS-RM
Next, I update the RouterOS to v 5.24 and make Reset Configuration (without default configuration)
And now, I can see a CPU load ~9-10% at all time.
Is it normal for this device?
mikrotik.jpg

After some times flash activity is stopped, but CPU load does not less than 6-7%.

PS. I’m afraid put this device in production. =(
Or, maybe my fears unfounded?