diff --git a/main.py b/main.py
index 83aee69..d13e44b 100755
--- a/main.py
+++ b/main.py
@@ -20,6 +20,7 @@ ROT = cNorm(exp(deg2rad(2)*I))
 IROT = 1/ROT
 F = 5 * 10**7
 F_ = 10**9
+bCap = True
 
 gOrigin = GyroVector(0,1)
 
@@ -109,6 +110,9 @@ def mainLoop():
                     gPlayer.cRot *= -1
                 if event.key == pygame.K_F3:
                     debugInfo = not debugInfo
+                if event.key == pygame.K_F1:
+                    global bCap
+                    bCap = not bCap
                 if event.key == pygame.K_F2:
                     if (len(wall_buffer) == 1):
                         wall_buffer.append(gPlayer.cPos)
@@ -155,8 +159,10 @@ def mainLoop():
             pygame.draw.rect(display, WHITE, (c.real * 100 + 95, (c.imag * 100 + 195), 10, 10))
 
         pygame.display.update()
-
-        clock.tick(60)
+        if bCap:
+            clock.tick(60)
+        else:
+            clock.tick()
     return True
 
 def main():