CPU spikes on 5.7 routerOS vs 4.17

I have recently upgraded my network to 5.7. They are a mix of 450g, 493g, 1100, 1200 etc. Everything seems good so far. Dude is reporting cpu spkies to 100%. I have watched the resources in winbox and never seen a spike yet. Could it be false reporting? Latency seems to be ok and everything.

This is happening on all the routers I have upgraded

I am running OSPF, pppoe, pcq etc.

4.17 before the upgrade:

5.7: