diff --git a/Confirmation_PP_FR8039550.pdf b/Confirmation_PP_FR8039550.pdf
deleted file mode 100644
index 57d400e..0000000
Binary files a/Confirmation_PP_FR8039550.pdf and /dev/null differ
diff --git a/car.py b/car.py
index 3b3242f..dac6df0 100644
--- a/car.py
+++ b/car.py
@@ -134,8 +134,8 @@ class Car(pygame.sprite.Sprite):
                         # print(f'Car {id(self)} crashed')
                         return
 
-                # else :
-                #     self.probes[idx] = self.vision_length * 2
+                else:
+                    self.probes[idx] = self.vision_length * 1.1
         # print(self.probes)
 
     def probe_brain(self):
diff --git a/main.py b/main.py
index ff4752d..866056a 100755
--- a/main.py
+++ b/main.py
@@ -2,12 +2,13 @@
 import math
 import pygame
 import random
+import sys
 import time
 
 from car import Car
 from genetics import genetic_selection, genetic_reproduction
 from maps import map1
-from params import CELL_COLOR, GX, GY, screen
+from params import CELL_COLOR, FRAMERATE, GX, GY, screen
 
 
 # https://medium.com/intel-student-ambassadors/demystifying-genetic-algorithms-to-enhance-neural-networks-cde902384b6e
@@ -19,6 +20,7 @@ all_cars = pygame.sprite.Group()
 loop = 0
 max_fitness = 0
 avg_fitness = 0
+fps = FRAMERATE
 
 
 for x in range(100):
@@ -26,14 +28,29 @@ for x in range(100):
     all_cars.add(car)
 
 
+def process_keys():
+    global fps
+    events = pygame.event.get()
+    for event in events:
+        if event.type == pygame.KEYDOWN:
+            if event.key in [pygame.K_KP_PLUS, pygame.K_PLUS]:
+                fps = int(fps * 1.2)
+            elif event.key in [pygame.K_KP_MINUS, pygame.K_MINUS]:
+                fps = int(fps / 1.25)
+            elif event.key in [pygame.K_ESCAPE]:
+                sys.exit(0)
+
+
 def run_round(all_cars):
     global max_fitness
     global avg_fitness
+    global fps
     running_cars = True
     while running_cars:
         running_cars = False
         screen.fill(CELL_COLOR)
         all_cars.draw(screen)
+        process_keys()
         for c in all_cars:
             c.show_features()
             if c.run:
@@ -47,12 +64,14 @@ def run_round(all_cars):
         text = font.render(f"Gen # : {loop}", True, (128, 128, 128))
         mft = small_font.render(f"max fitness : {max_fitness}", True, (128, 128, 128))
         aft = small_font.render(f"avg fitness : {avg_fitness}", True, (128, 128, 128))
+        fpst = small_font.render(f"FPS : {fps}", True, (128, 128, 128))
         screen.blit(text, (GX - 50 - text.get_width(), text.get_height() // 2))
         screen.blit(mft, (GX - 50 - text.get_width(), text.get_height() // 2 + 30))
         screen.blit(aft, (GX - 50 - text.get_width(), text.get_height() // 2 + 50))
+        screen.blit(fpst, (GX - 50 - text.get_width(), text.get_height() // 2 + 75))
 
         pygame.display.flip()
-        clock.tick(48)
+        clock.tick(fps)
 
     # for c in all_cars :
     #     print(f"Car {id(c)} Fitness : {c.brain.fitness})")
@@ -75,7 +94,7 @@ def run_round(all_cars):
         all_cars.add(Car(brain=b))
     print("Waiting before new run")
     for x in range(1):
-        time.sleep(0.5)
+        time.sleep(0.25)
         pygame.display.flip()
 
 
diff --git a/params.py b/params.py
index 36f76be..aa380f2 100644
--- a/params.py
+++ b/params.py
@@ -5,19 +5,20 @@ FLAGS = HWSURFACE | DOUBLEBUF  # | FULLSCREEN
 
 GX = 1000
 GY = 1000
+FRAMERATE = 24
 CELL_COLOR = (80, 80, 80)
 CAR_SIZE = 20
 CAR_MAX_SPEED = 100
 CAR_MAX_FITNESS = 100
 CAR_STEERING_FACTOR = 10
 MAX_RUN_TIME = 120
-VISION_LENGTH = 100
+VISION_LENGTH = 75
 VISION_SPAN = 35  # degrees
 THROTTLE_POWER = 3
 
 MUTATION_RATE = 0.01
 SELECTION_ALG = "kway"  # roulette
-KWAY_TOURNAMENT_PLAYERS = 3
+KWAY_TOURNAMENT_PLAYERS = 10
 
 pygame.init()
 screen = pygame.display.set_mode((GX, GY), FLAGS)