If fps limit can be disabled,we can play there but we will have our war in CTF 4
Out of curiosity, why do you want to play in CTF4 instead of CTF5? CTF4 has many issues and is no longer developed, there will be no further updates to CTF4.
There's a bug in CTF4 that allows some players to go over the arena boundaries, that can happen and be abused by players during your clanwar. Also, CTF5 automatically generates round reports like
this after every round. So even after your clan war is over, you can check the stats of every round for every player and every weapon.