But there is a fair bit going on on the inputs side
Can we assume the node-red modbus stuff is MQTT? What about the BMW and OpenEVSE? Is the weather MQTT too?
How often are all these updated? How many topics is each one? How much input processing is on each input? What QoS level does each one use?
All the screenshots tell us is that the mqtt_input is using a lot of resources, the biggest part of debugging this is to work out what it is actually doing.