Yes, I'm sure they'll find it in such a short time. They can create RBF in 1 minute in total. Do you have an idea as a solution to this?
Setting highest fee and CPFP fee bumping are the only techniques that you can use to increase your chance.
RBF activation and deactivation option is available in Bitcoin Core.
If I transfer the private key to Bitcoin Core and disable the RBF option from there, will there be a definitive solution if I start the transfer process from there?