I found a bottleneck and was able to improve the performance significantly.
Mostly these compilers were affected by the bottleneck: Delphi 6 - XE, Delphi OSX and Lazarus (everything except Delphi XE2+XE3 VCL). Also OExport gains extra speed when updating the OmniXML library!
OWalk allows you to create step-by-step tutorials for your Delphi VCL or Lazarus LCL applications for MS Windows.
These interactive tutorials help your users to complete almost every task quickly and without confusion.