Better Chat Filter doesn't check if the player is already muted and muted players spamming the filtered word and it lags all other online clients on the server

Also when u mute someone for good or for along time, players typing filtered words and this plugin muting them for X minutes (it is 5 mins on my server)

I have this exact same issue. I mute someone permanently and somehow the plugin is picking up their chat somewhere and overwriting my mute with the temporary one from this plugin..

Anyone got any ideas?