It should be 220Mbit (not 220000) and 114Mbit (not 114000). See if that helps. NSS fq codel will average “high B” / “low A” on most bufferbloat measures.
Most ipq806x devices can do cake at nearly that speed (normal openwrt, non-NSS build). Cake will give better latency if you are looking for peak performance at that ISP speed. I’d turn cake down to 160Mbit. Defer towards lower (maybe 150 or 140) - should find a sweet spot of consistent A+ bufferbloat for your connection. NSS hardware offloading is better suited to for 500+mbps isp connections to get max performance.
@SiXX - interesting. Let me know if you figure out any specifics or get any crash logs. Does the 21.02 build work well?