CPU Interrupt Baselines and Guidance?

[BNaCl]

Hoping some performance experts can help me to understand and evaluate performance of my OPNs install on a Protectli FW4B:

Intel(R) Celeron(R) CPU J3160 @ 1.60GHz (4 cores)
8 GB RAM
128 SSD
4 Intel GB NIC
WAN: 400 Mbps down / 20 Mbps up

Seeing the following under medium load (sometimes peaking over 1.0 but never seen over 2):

Load average   0.97, 0.64, 0.68


item                min             max              average
user                    0             30.157691647      3.507191605801969
nice                  0             0                      0
system           0             15.248910052      1.3458949910876143
interrupt #   0             8.4754407825      0.5792166584692486
(Interrupts jump to 18 or so when under a speed test maxing out WAN)


For interrupts, I don't really understand what is considered out of range.

Thanks in advance!