diff --git a/supervised/algorithms/catboost.py b/supervised/algorithms/catboost.py
index 5aa68cd0..331be4cc 100644
--- a/supervised/algorithms/catboost.py
+++ b/supervised/algorithms/catboost.py
@@ -68,7 +68,7 @@ def __init__(self, params):
 
         logger.debug("CatBoostAlgorithm.__init__")
 
-    def _assess_iterations(self, X, y, eval_set, max_time):
+    def _assess_iterations(self, X, y, eval_set, max_time = None):
         if max_time is None:
             max_time = 3600
         try:
@@ -85,8 +85,8 @@ def _assess_iterations(self, X, y, eval_set, max_time):
                 verbose_eval=False,
             )
             elapsed_time = np.round(time.time() - start_time, 2)
-            new_rounds = int(min(10000, max_time / elapsed_time * 2.0))
-            new_rounds = max(max_rounds, 100)
+            new_rounds = int(min(10000, max_time / elapsed_time))
+            new_rounds = max(max_rounds, 10)
             return new_rounds
         except Exception as e:
             return 1000
@@ -122,10 +122,9 @@ def fit(
             )
 
         # disable for now ...
-        # new_iterations = self._assess_iterations(X, y, eval_set, max_time)
-        # self.model.set_params(iterations=new_iterations)
-
-        self.model.set_params(iterations=self.rounds)
+        new_iterations = self._assess_iterations(X, y, eval_set, max_time = None)
+        self.model.set_params(iterations=new_iterations)
+        #self.model.set_params(iterations=self.rounds)
 
         self.model.fit(
             X,
diff --git a/supervised/tuner/time_controller.py b/supervised/tuner/time_controller.py
index 972f4e00..6ed92b8a 100644
--- a/supervised/tuner/time_controller.py
+++ b/supervised/tuner/time_controller.py
@@ -68,7 +68,7 @@ def time_should_use(self, fit_level):
             "insert_random_feature": 0.05,
             "features_selection": 0.05,
             "hill_climbing_1": 0.2,  # enough to have only first step from hill climbing
-            "boost_on_errors": 0.1,
+            "boost_on_errors": 0.05,
             "stack": 0.15,
         }