Clustering time sequences with different lengths using the matlab code

Please allow me to solve this problem with your expertise, sir/ma’am.

I am trying to cluster time sequences with different lengths using the matlab code in https://www.mathworks.com/matlabcentral/fileexchange/54358-jsantarc-dynamic-time-alignment-k-means-kernel-clustering-for-time-sequence-clustering

When I am running the toy data it provids with the selection of 2 clusters, it is working fine.

However, when I increase the number of cluster (like 6, 7 or 8), it takes very very long (many hours).

I cannot use this for my research if it takes this long to cluster samll amount of data like this.

(I have more than 10,000 samples to compute)

Is there a way to improve the computing speed of this code?

If you can show me an alternertive way (other way to cluster), that would be very much appreciated, too.

Thanks a million for sharing your expertise.

Best wishes,