if someone is able to find multiple of these prefixes in the range, will it help in any way to reach the target faster?
no usually the prefixes are uniformly distributed over the range. If you would search long enough, you would see many addresses with the same prefix in the range. there is no pattern or other mechanics which you can exploit just by analyzing prefixes of derived addresses, because an bitcoin
adressaddress is derived by sha256 hash and ripemd160 from the public key. so you have several hashing functions in between which destroy any relations to the public key.
It would be a coincidence if you find
aan address with the target prefix in the near neighborhood of the target address.
So it doesnt give any benefit over traditional brute forcing.