ESXi Check Timeout but vCenter piggiback data is OK

If this can help, I’m still relatively new to checkmk so I didn’t know how to access that graph before, but it seems to be something about my CPU. Its utilisation is quite low, but the “time spent in user space” is quite high sometimes (117s at max), other times it goes down to 500ms. I might have to take this to VMWare, but maybe you or someone would know: