Hi,

> In this case
> I need to use the Dataset descendants as rewriting the application is
> not an option.

I use TDataset descendants as well.

> In some screens I have a fairly large amount of data
> (5000 to 15000 records, and yes I know it is against Client/Server
> design principles, but this is a legacy system),

Well, I don't have so many data in any screen...

> and at present it is
> slower for these large datasets than the BDE.

Keylinks will be your friend here. Good index as well.

Share with us where do you have slower results. These should always be small
changes in your code to adapt.

Artur