remote: adjust traverse threshold multiplier (#3705)

* Fixes #3704

Author: pmrowla

dvc/remote/base.py

@@ -95,7 +95,7 @@ class BaseRemote(object):
     DEFAULT_CACHE_TYPES = ["copy"]
     DEFAULT_VERIFY = False
     LIST_OBJECT_PAGE_SIZE = 1000
-    TRAVERSE_WEIGHT_MULTIPLIER = 20
+    TRAVERSE_WEIGHT_MULTIPLIER = 5
     TRAVERSE_PREFIX_LEN = 3
     TRAVERSE_THRESHOLD_SIZE = 500000
     CAN_TRAVERSE = True