Optimiser programme pygame (python)

Bonjour,
Je viens de terminer un jeu en python avec pygame et je constate que celui-ci prend 12 à 15% de mon i5 8400 et 0% de ma GTX 1060, j'ai essayé de l'optimiser mais je n'ai gagné que quelques dixième de pourcent. Y-a-t-il moyen de faire en sorte que le processeur graphique prenne un peu plus les choses en main (j'ai déjà utilisé hwsurface et doublebuf) ? comment pourrais-je optimiser le morceau de code qui pose problème ? Je suis nouveau dans la matière, il se peut que vous constatiez des erreurs ou bien des choses vraiment mal optimisées et arrangées

while gameOn:

for event in pygame.event.get():
if event.type == pygame.QUIT:
gameOn = False
Mainloop = False
gameOver = False
youWon = False
explosion = False
pygame.display.quit()
pygame.quit()
elif event.type == pygame.MOUSEMOTION:
game.player.move()
MousePos = pygame.mouse.get_pos()
MousePosX = int(MousePos[0]) - 50
MousePosY = int(MousePos[1])

elif event.type == pygame.MOUSEBUTTONUP:

if not projectilesLeft == 0:
projectilesLeft -= 1

game.player.launchMissile()

if event.type == pygame.USEREVENT:
WSec -= 1
if showFPS:
fpsText = chicken_font5.render(f"{int(clock.get_fps())} FPS", True, whiteColor)

for enemyShip in game.allEnemyShips:
if enemyShip.rect.y >= 1030:
enemyShip.rect.y = 0
enemyShip.rect.x = randint(5, 700)
enemyPassed += 1
print("Vaisseaux passés :", enemyPassed)
fire += 1
pygame.display.flip()
if enemyPassed == 3:
gameOn = False
gameOver = True
pygame.mixer.stop()
ExplosionSong.play()
ExplosionSong.set_volume(0.05)
windowSurface.blit(feuBase, [-95, 885])
pygame.display.flip()
time.sleep(3)

try:
if not MousePosX == game.player.rect.x or not MousePosY == game.player.rect.y or collision == True:

gameOn = False
explosion = True
gameOver = True

except:
pass

if Qual == 1:
clock.tick(60)
elif Qual == 2:
clock.tick(30)

if WSec == 0:
gameOn = False
youWon = True

elif WSec <= 150:
if Qual == 1:
for projectile in game.player.allProjectiles:
projectile.velocity = 15
elif Qual == 2:
for projectile in game.player.allProjectiles:
projectile.velocity = 30


if 140 >= WSec > 125:
for enemyShip in game.allEnemyShips:
enemyShip.range2 = 3 * Qual
elif 125 >= WSec and truc1:
truc1 = False
NewShip.newShip()
elif 105 >= WSec > 90:
for enemyShip in game.allEnemyShips:
enemyShip.range1 = 2 * Qual
elif 80 >= WSec and truc5:
truc5 = False
NewShip.newShip()
elif 75 >= WSec and truc2:
NewShip.newShip()
truc2 = False
elif 60 >= WSec and truc6:
truc6 = False
NewShip.newShip()
elif 35 >= WSec and truc3:
NewShip.newShip()
truc3 = False
elif 35 >= WSec:
for enemyShip in game.allEnemyShips:
enemyShip.range2 = 4 * Qual

try:

windowSurface.blit(gameEtoile, [0, 0])
windowSurface.blit(game.base.image, [game.base.rect.x, game.base.rect.y])
windowSurface.blit(game.player.image, [game.player.rect.x, game.player.rect.y])
secondsBeforeWithdrawalText()
windowSurface.blit(withdrawalText, [232, 10])

if fire >= 1:
windowSurface.blit(feu, fire1Pos)
elif fire >= 2:
windowSurface.blit(feu, fire2Pos)
elif fire >= 3:
windowSurface.blit(feu, fire3Pos)

if projectilesLeft > 0:
for projectile in game.player.allProjectiles:
projectile.move()
game.player.allProjectiles.draw(windowSurface)

for enemyShip in game.allEnemyShips:
enemyShip.moving()

#enemyShip.updateHealthBar(windowSurface)

game.allEnemyShips.draw(windowSurface)

projectilesLeftText = projectilesLeft - 1
projectilesLeftTextDef()
if showFPS:
windowSurface.blit(fpsText, [5, 5])
pygame.display.flip()
except:
pass