Bip39 Default variety of iterations Employed in wallets is 2048. Growing this quantity really should ensure it is safer versus brute force attacks, nevertheless you'll need to retailer this benefit. To entry your wallet with personalized PBKDF2 you'll want to use this script (or related) to work out your BIP39 https://socialwebnotes.com/story4050901/bip39-mnemonic-phrase-tool-helping-the-others-realize-the-advantages-of-seed-phrase-generator