[BUG]When unraring a huge number of files,keka will stuck

[lerenyx]

Configuration

• Keka version: 1.3.2 (5208)
• macOS version: 13.4.1 (c) (22F770820d)

Describe the bug

When unraring a huge number of files,keka will stuck,for example ,800 little size file , 20-30kb each. if the number of files is reduced to around 300, keka will stuck for 10 secs, and then begin working .

[aonez]

This is due to the preparation of the operations. I need to enhance this process, meanwhile just drop them in smaller numbers.