Can I make multiple if, elif, else statements run more efficiently

My code uses three random numbers and some if statements to move a pixel randomly, using cProfiler, it turns out the function is quite inefficient.

s = self.surrounding()
surroundingBool = [False if i == None else True for i in s]

r1 = random.random()
r2 = random.random()
r3 = random.random()

if r1 <= 0.333:
    if r3 < 0.5 and not surroundingBool[4]: self.x += 1
    elif not surroundingBool[3]: self.x -= 1
elif r1 <= 0.666:
    if r3 < 0.5 and not surroundingBool[6]: self.y += 1
    elif not surroundingBool[1]: self.y -= 1
else:
    if r2 < 0.25 and not surroundingBool[7]:
        self.x += 1
        self.y += 1
    elif r2 < 0.5 and not surroundingBool[2]:
        self.x += 1
        self.y -= 1
    elif r2 < 0.75 and not surroundingBool[5]:
        self.x -= 1
        self.y += 1
    elif not surroundingBool[0]:
        self.x -= 1
        self.y -= 1

self.x %= width
self.y %= height
    self.pos = self.y * width + self.x

Hopefully this is quite self explanatory but I can provide context as required. How can I make these if else statements faster or more efficient?

The full code can be found here if needed

Thanks.