why has my fruity started stuttering?

NEVER HAD THIS PROBLEM BEFORE.

using any new plugins?

nothing too exciting.

Ive got this aswell.

After about 20 mins of running it, i get random stutters here and there. If i close the program and re-open it, it works fine again for another 20 mins. Im sure its a bug in the version i have. Im gonna upgrade at somepoint and see if it helps.