@agape : As said Philemot, you can use the "use spring reduction" function. You can also use the "Distance min" value. This function allows to keep only the springs that have a length higher than this value. For hair, the default distance for the springs is 0.5 and the distance min is 0.25. I suggest you to keep the 0.5 value but you can increase the distance min value to 0.4 if necessary. Some new hair at Daz are really beautiful but they have hundreds thousands vertices. When you have this message, at least 30 or 40 millions springs have been generated. This value is really the maximum value for a simulation even on a very fast computer. I want to write a mesh decimator specially made for the hair. I've began to think to how to write it, but it is not so easy. For now, you have to use the above solutions to create simulations on very high resolution hair.

____________________________________________

Follow me on Twitter : @VWDynamics

Watch demo videos on Youtube