diff --git a/fawkes/differentiator.py b/fawkes/differentiator.py
index 3ead798..6f1731e 100644
--- a/fawkes/differentiator.py
+++ b/fawkes/differentiator.py
@@ -407,7 +407,6 @@ class FawkesMaskGeneration:
 
             if iteration != 0 and iteration % (self.MAX_ITERATIONS // 3) == 0:
                 LR = LR * 0.8
-                print("LR: {}".format(LR))
 
             if iteration % (self.MAX_ITERATIONS // 5) == 0:
                 if self.verbose == 1:
diff --git a/fawkes/protection.py b/fawkes/protection.py
index 09430a9..8bf1f22 100644
--- a/fawkes/protection.py
+++ b/fawkes/protection.py
@@ -81,8 +81,8 @@ class Fawkes(object):
                 print("Please enable GPU for ultra setting...")
                 sys.exit(1)
             th = 0.01
-            max_step = 200
-            lr = 20
+            max_step = 1000
+            lr = 10
         else:
             raise Exception("mode must be one of 'low', 'mid', 'high', 'ultra', 'custom'")
         return th, max_step, lr
@@ -179,7 +179,7 @@ def main(*argv):
                         default="high_extract")
 
     parser.add_argument('--th', type=float, default=0.01)
-    parser.add_argument('--max-step', type=int, default=500)
+    parser.add_argument('--max-step', type=int, default=1000)
     parser.add_argument('--sd', type=int, default=1e9)
     parser.add_argument('--lr', type=float, default=2)
 
diff --git a/setup.py b/setup.py
index 6a61608..84d5a94 100644
--- a/setup.py
+++ b/setup.py
@@ -77,7 +77,7 @@ setup_requires = []
 install_requires = [
     'numpy==1.16.4',
     # 'tensorflow-gpu>=1.13.1, <=1.14.0',
-    'tensorflow>=1.12.0, <=1.15.0', # change this is tensorflow-gpu if using GPU machine. 
+    'tensorflow>=1.12.0, <=1.15.0',  # change this is tensorflow-gpu if using GPU machine.
     'argparse',
     'keras>=2.2.5, <=2.3.1',
     'scikit-image',