In Excel's Python, when running a double for loop, it shows "timeout".

Question

import pandas as pd

for index, row in df1.iterrows():

invoice_num = row['num']

for index2, row2 in df2.iterrows():

    if row2['num'] == invoice_num:

        receivable_balance =  df1.loc[index, 'rece‘] - row2['come']

        df1.loc[index, 'rece'] = receivable_balance.round(2)
```In Excel, running the above Python code works when there are 500 records, but times out when there are over 2000 records.

This issue will be improved later on? Or is there a limit to the amount of data Excel's Python can handle?

thanks