Steps to reproduce:

1. Create additional item prototypes in LLD inside Template Module Windows physical disks by Zabbix agent (see screenshot).
   
2. Create host and link to template Template OS Windows by Zabbix agent
3. **Wait for LLD discovery physical disks.
4. Wait 5-10 minutes.

Result:
See graph for write operations per second:

**The same happens for read operations and queue length:

Expected:
I think that items with perf_counter_en key is better reflects current disk load. Metrics obtained by WMI reflect only the load at the time of taking the values of the indicators and do not reflect the actual load during the time interval between the takings.