Delphi V.S. Clipper

[[Lepe]]

¿Has probado THREAD_PRIORITY_ABOVE_NORMAL ?

Buscando por "SetThreadPriority":

Empezado por Win32's Developer's Reference

When manipulating priorities, be very careful to ensure that a high-priority thread does not consume all of the available CPU time. A thread with a base priority level above 11 interferes with the normal operation of the operating system. Using REALTIME_PRIORITY_CLASS may cause disk caches to not flush, hang the mouse, and so on.

Quizás tengas que ordenar con un
Repaint
Refresh
Application.ProcessMessages
Application.HandleMessages

si ves efectos no deseados.

Y a las malas.... quizás puedas localizar el programa de Clipper y cambiarle la prioridad

Suerte !!