Unzipping much slower than in 7zip

I have a large archive (1.5 GB).
7zip extracts all files in about 3 minutes.
DOpus took 30 minutes and was 55% done (I cancelled as this sufficiently proves that DOpus is much slower). Extract has been triggered by entering the zip file, selecting all files and drag&dropping them to a local folder.

Is there any way you could make DOpus work on zip files faster?

The file I'm extracting is hybris-commerce-suite-5.6.0.0.zip. You will probably not be able to download it without registering but I think I could send it to you if you want (via Dropbox).

Please email one of us with information on how to get the file. leo@gpsoft.com.au

We've identified a performance issue here and should have things faster in the next update.

I just completed another test (on another computer so results vary) and it's 4:30 in DOpus compared to 2:20 in 7-zip and 2:15 in WinRAR, which is good enough. I understand that these are dedicated software and they may have some additional tricks to make (un)zipping faster.

Thank you for quick implementation of a fix for this issue.

Part of the fix is already available in 11.15.3, and should see the times go much closer.

There are also some other fixes coming in the longer term, which will make the timing even closer than that, but they will need more testing and we're not ready to release them yet.