I use texmaker as an editor for my university research.
My problem is that soon after starting to write in texmaker there is a considerable time gap between the moment when I press a key on my keyboard and when the letter finally appears in texmaker. Obviously this complicates the process of writing a lot.
Does anyone know what happens here or how I could solve that problem?

I use texmaker on a MacBook with Intel Core Duo Processor and OSX 10.4.8.
Thanx a lot for your answers!