Help me in solving PREQ44 problem

My issue

In week 3 i have submitted this before the deadline but it was showing time limit exceeded

i conveyed this problem my faculty also

now i have completed all the weeks in week 3 second module is showing this

now i completed 99% remaining percent this error

please solve the issues

My code

# Function to check if a given string contains all vowels
def contains_all_vowels(substring):
    vowels = set('aeiou')
    return all(c in vowels for c in substring)

# Function to determine if Chef is happy or not for a given string S
def is_chef_happy(S):
    for i in range(len(S) - 2):
        for j in range(i + 3, len(S) + 1):
            substring = S[i:j]
            if contains_all_vowels(substring):
                return True
    return False

# Input the number of test cases
num_test_cases = int(input())

# Process each test case
for _ in range(num_test_cases):
    # Input the string S
    S = input().strip()

    # Check if Chef is happy or not and print the result
    if is_chef_happy(S):

Learning course: Kalasalingam Academy of Research and Education
Problem Link: CodeChef: Practical coding for everyone