Memory consumption is high

Hi,

I was using helm-diff.

```
    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
1111093 root      20   0 4238448 985096      8 S  32.6  24.6   0:04.21 diff
```

This is diffing a kyverno helm installation. Almost 1 GB memory used.
Is this normal? Why would it need so much memory?