colima clone unbelievable slow

### Description

`colima clone default k8s` is unbelievable slow. I'm running it after creating it via `colima start --memory 4 --vm-type vz --vz-rosetta --kubernetes --runtime containerd` running it for a while and finally stopping it `colima stop`.

It's copying for ~40min, and so far it has copied 18gb out of 42gb.

### Version

colima version 0.5.6
git commit: ceef812c32ab74a49df9f270e048e5dced85f932

### Operating System

- [ ] macOS Intel <= 13 (Ventura)
- [ ] macOS Intel >= 14 (Sonoma)
- [ ] Apple Silicon <= 13 (Ventura)
- [X] Apple Silicon >= 14 (Sonoma)
- [ ] Linux

### Output of `colima status`

FATA[0000] colima is not running

### Reproduction Steps

1. `colima start --memory 4 --vm-type vz --vz-rosetta --kubernetes --runtime containerd`
2. some usage
3. `colima stop`
4. `colima clone default k8s`

### Expected behaviour

I expected it to be as fast as copying a 42gb file, not just 60 Mb/s.

### Additional context

M2 Pro (32GB RAM, 512GB Storage, of which 200GB are free).

Edit: I just copied the folder using `rsync --progress` and saw average speeds of 300mb/s. Implementation uses `cp`, not sure if that is the root cause.