Most of my fees are 1 or 2 sat. I have it set to minimum.
I have recently set my fees to 0/0 for most of my channels because they become totally unbalanced. I usually keep my fee rate around 15-30 ppm with one exception - the
channel with bfx-lnd1 node. I routed a few transactions through it with the fee rate > 90 ppm. All of my channels have 0 msat base fee now.
Are you seeing any bursts like this?:
No, I hardly ever route payments lower than 10k satoshi. There is usually a few hour interval between them.