Amigo Tenta isso ai......receita do bolo quase completa dá uma olhada em queuetree e divide a velocidade.
consegui um desempenho melhor na minha rede assim.......
/ ip firewall mangle
add chain=prerouting p2p=all-p2p action=mark-connection \
new-connection-mark=P2P-Conexao passthrough=yes comment="CONTROLE P2P" \
disabled=no
add chain=prerouting protocol=tcp p2p=all-p2p connection-limit=40,32 \
action=mark-connection new-connection-mark=P2P-Conexao-Limite \
passthrough=yes comment="" disabled=no
add chain=prerouting connection-mark=P2P-Conexao action=mark-packet \
new-packet-mark=P2P-Pacotes passthrough=no comment="" disabled=no
add chain=prerouting connection-mark=P2P-Conexao-Limite action=mark-packet \
new-packet-mark=P2P-Pacotes passthrough=no comment="" disabled=no
add chain=prerouting protocol=icmp \
action=mark-connection new-connection-mark=ICMP-Conexao passthrough=yes \
comment="CONTROLE ICMP" disabled=no
add chain=prerouting connection-mark=ICMP-Conexao action=mark-packet \
new-packet-mark=ICMP-Pacotes passthrough=yes comment="" disabled=no
add chain=prerouting protocol=tcp dst-port=443 action=mark-connection \
new-connection-mark=Navegacao-Conexao passthrough=yes comment="CONTROLE \
NAVEGACAO" disabled=no
add chain=prerouting protocol=tcp dst-port=80 action=mark-connection \
new-connection-mark=Navegacao-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=53 action=mark-connection \
new-connection-mark=Navegacao-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=udp dst-port=53 action=mark-connection \
new-connection-mark=Navegacao-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=21 action=mark-connection \
new-connection-mark=Navegacao-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting connection-mark=Navegacao-Conexao action=mark-packet \
new-packet-mark=Navegacao-Pacotes passthrough=no comment="" disabled=no
add chain=prerouting protocol=tcp dst-port=110 action=mark-connection \
new-connection-mark=E-mail-Conexao passthrough=yes comment="CONTROLE \
E-MAIL" disabled=no
add chain=prerouting protocol=tcp dst-port=25 action=mark-connection \
new-connection-mark=E-mail-Conexao passthrough=yes comment="" disabled=no
add chain=prerouting protocol=udp dst-port=25 action=mark-connection \
new-connection-mark=E-mail-Conexao passthrough=yes comment="" disabled=no
add chain=prerouting connection-mark=E-mail-Conexao action=mark-packet \
new-packet-mark=E-mail-Pacotes passthrough=no comment="" disabled=no
add chain=prerouting protocol=tcp dst-port=1863 action=mark-connection \
new-connection-mark=Messenger-Conexao passthrough=yes comment="CONTROLE \
MESSENGER" disabled=no
add chain=prerouting protocol=udp dst-port=1863 action=mark-connection \
new-connection-mark=Messenger-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=6891-6901 action=mark-connection \
new-connection-mark=Messenger-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=udp dst-port=6891-6901 action=mark-connection \
new-connection-mark=Messenger-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=udp dst-port=5190 action=mark-connection \
new-connection-mark=Messenger-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting connection-mark=Messenger-Conexao action=mark-packet \
new-packet-mark=Messenger-Pacotes passthrough=no comment="" disabled=no
add chain=prerouting protocol=tcp dst-port=22 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes \
comment="CONTROLE ACESSO REMOTO" disabled=no
add chain=prerouting protocol=tcp dst-port=23 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=3389 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes \
comment="Terminal Server" disabled=no
add chain=prerouting protocol=tcp dst-port=5800 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes comment="VNC" \
disabled=no
add chain=prerouting protocol=tcp dst-port=5900 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=8291 action=mark-connection \
new-connection-mark=Acesso-Remoto-Conexao passthrough=yes comment="Winbox" \
disabled=no
add chain=prerouting connection-mark=Acesso-Remoto-Conexao action=mark-packet \
new-packet-mark=Acesso-Remoto-Pacotes passthrough=no comment="" \
disabled=no
add chain=prerouting protocol=tcp dst-port=3306 action=mark-connection \
new-connection-mark=Banco-Dados-Conexao passthrough=yes comment="CONTROLE \
BANCO DE DADOS - SQL" disabled=no
add chain=prerouting protocol=tcp dst-port=1521 action=mark-connection \
new-connection-mark=Banco-Dados-Conexao passthrough=yes comment="Oracle" \
disabled=no
add chain=prerouting protocol=tcp dst-port=1433-1434 action=mark-connection \
new-connection-mark=Banco-Dados-Conexao passthrough=yes comment=" Microsoft \
SQL Server" disabled=no
add chain=prerouting connection-mark=Banco-Dados-Conexao action=mark-packet \
new-packet-mark=Banco-Dados-Pacotes passthrough=no comment="" disabled=no
/ queue tree
add name="QOS" parent=global-total packet-mark="" limit-at=0 queue=default \
priority=8 max-limit=6000000 burst-limit=0 burst-threshold=0 burst-time=0s \
disabled=no
add name="1 - Navegacao" parent=QOS packet-mark=Navegacao-Pacotes \
limit-at=2000000 queue=default priority=1 max-limit=100000000 \
burst-limit=0 burst-threshold=0 burst-time=0s disabled=no
add name="2 - Messenger" parent=QOS packet-mark=Messenger-Pacotes \
limit-at=512000 queue=default priority=2 max-limit=1000000 burst-limit=0 \
burst-threshold=0 burst-time=0s disabled=no
add name="2 - E-mail" parent=QOS packet-mark=E-mail-Pacotes limit-at=512000 \
queue=default priority=3 max-limit=1000000 burst-limit=0 burst-threshold=0 \
burst-time=0s disabled=no
add name="8 - P2P" parent=QOS packet-mark=P2P-Pacotes limit-at=0 queue=default \
priority=8 max-limit=128000 burst-limit=0 burst-threshold=0 burst-time=0s \
disabled=no
add name="4 - Acesso-Remoto" parent=QOS packet-mark=Acesso-Remoto-Pacotes \
limit-at=256000 queue=default priority=2 max-limit=512000 burst-limit=0 \
burst-threshold=0 burst-time=0s disabled=no
add name="5 - ICMP" parent=QOS packet-mark=ICMP-Pacotes limit-at=256000 \
queue=default priority=1 max-limit=512000 burst-limit=0 burst-threshold=0 \
burst-time=0s disabled=no
add name="6 - UDP" parent=QOS packet-mark=UDP-Pacotes limit-at=2000000 \
queue=default priority=3 max-limit=4000000 burst-limit=0 burst-threshold=0 \
burst-time=0s disabled=no
add name="7 - Outros" parent=QOS packet-mark=Outros-Pacotes limit-at=0 \
queue=default priority=8 max-limit=2000000 burst-limit=0 burst-threshold=0 \
burst-time=0s disabled=no
add name="3 - Banco-Dados" parent=QOS packet-mark=Banco-Dados-Pacotes \
limit-at=256000 queue=default priority=3 max-limit=512000 burst-limit=0 \
burst-threshold=0 burst-time=0s disabled=no
add name="3 - Jogos" parent=QOS packet-mark=Jogos-Pacotes limit-at=512000 \
queue=default priority=3 max-limit=1000000 burst-limit=0 burst-threshold=0 \
burst-time=0s disabled=no
flws...