Why is extracting ZIP file taking so long?

A reason of the extremely slow unzipping on Windows can be Defender that runs in the background and scans each file. This usually happens when you try to unzip a file that was downloaded from an online storage (e.g. from Google Drive) or you received it as an email attachment. … Move the zip file to the temporary folder.

How do you speed up ZIP extraction?

There are a few things you can do to make it go faster though:
  1. Turn off your antivirus software. …
  2. More RAM. …
  3. Extract to a different hard drive than the one the zip file is stored on. …
  4. Use SSDs for both the zip file and extracted files.

How long does it take to Gunzip a file?

To transmit a 50kB file, you thus need 0.01 seconds. gzip compression adds about 0.001 seconds to compress, and 0.0003 seconds to decompress (let’s round up and say 0.002 total), but you only have to transmit 16kB, which takes 0.0032 seconds.