Display load is slow and IO wait is not normal
can you try to use the following Query in graph?
sum( rate(node_cpu{instance="$host", mode!="idle"}[$interval])) by (mode) * 100 / scalar(sum(rate(node_cpu{instance="$host"}[$interval]))) or sum(irate(node_cpu{instance="$host", mode!="idle"}[5m ])) by (mode) * 100 / scalar(sum(irate(node_cpu{instance="$host"}[5m])))
it is needed to click on graph name, open for edit, open “metrics” tab and replace Query.
please find the screenshot