Why did you use echo?

 echo -t @kicks [kick tracker] $nick kicked $knick from $chan on $date at $time 
 echo -t @bans [ban logger] $nick set the following ban $1- against user $bnick on $time $date in $chan

You should use aline, as well as use $& to simplify the code:

aline @kicks [kick tracker] $nick kicked $knick $&
 from $chan on $date at $time 
aline @bans [ban logger] $nick set the following $&
 ban $1- against user $bnick on $time $date in $chan

That way, it actually takes less CPU.