i delete my paytm coz it may be very fast in payments and other's transections but google pay is much better for more secure and more fast payments. Yes in google pay sometimes having issue with bank transactions, it may related with those private banks like Axis and HDFC having server issue but with sbi upi, it doesn't having any issue.
Yesterday, i read some news about govt is consider in investing 10% in paytm, if this gives nod by rbi in coming months. Paytm will be doing again good business with paytm payment bank. If you want to wait for this, Keep wait, if you still think, it's not secure as before so delete account.