winetricks using proton wine much slower than with system wine

[frostworx]

title says it all
when using winetricks with proton wine it is much slower than with system wine.
f.e.
LC_ALL="C" PATH="/usr/local/bin:/usr/bin" LD_LIBRARY_PATH="" LD_PRELOAD="" WINE="/usr/bin/wine" WINEARCH=win64 WINEDEBUG="-all" WINEPREFIX="/media/B4-1/SteamLibrary/steamapps/compatdata/8080/pfx" winetricks --unattended d3dx9_31 d3dx9_34
takes about 6 seconds
and
LC_ALL="" PATH="/usr/local/bin:/usr/bin" LD_LIBRARY_PATH="" WINE="/media/ssdeam/SteamLibrary/steamapps/common/Proton 5.0/dist/bin/wine" WINEARCH=win64 WINEDEBUG="-all" WINEPREFIX="/media/B4-1/SteamLibrary/steamapps/compatdata/8080/pfx" winetricks --unattended d3dx9_31 d3dx9_34
takes 40 seconds - both creating a fresh WINEPREFIX.

edit: system wine is wine-5.15
proton wine is wine-5.0-667-ge9264df

Proton 4.2 wine (wine-4.2) needs 23 seconds for the same command
Proton-5.9-GE-3-ST (wine-5.9 (Staging)) needs 10 seconds

[frostworx]

"fixed" in https://github.com/frostworx/steamtinkerlaunch/releases/tag/v1.4.0