CacheManager.startCaches very slow when multiple caches are passed in

cm1.startCaches("c1", "c2", "cache1", "cache2", CacheContainer.DEFAULT_CACHE_NAME);
cm2.startCaches("c1", "c2", "cache1", "cache2", CacheContainer.DEFAULT_CACHE_NAME);
waitForClusterToForm("c1", "c2", "cache1", "cache2");

private void startAllCaches() {
  startCache("c1");
  startCache("c2");
  startCache("cache1");
  startCache("cache2");
  startCache(CacheContainer.DEFAULT_CACHE_NAME);
}

private void startCache(String c1) {
  cm1.getCache(c1);
  cm2.getCache(c1);
  waitForClusterToForm(c1);
}