mpl: lower minimum connection ratio to allow more grouping

Signed-off-by: Arthur Koucher <arthurkoucher@precisioninno.com>

Author: AcKoucher

src/mpl/src/clusterEngine.h

@@ -312,7 +312,7 @@ class ClusteringEngine
   // them to be considered connected when creating data flow.
   const int max_num_of_hops_ = 5;
 
-  const float minimum_connection_ratio_{0.12};
+  const float minimum_connection_ratio_{0.08};
 
   int first_io_bundle_id_{-1};
   IOBundleSpans io_bundle_spans_;