Fasttrack counter to be less than the firewall entry counter? And Why?

I’m using CHR v7.5 version, I configured the advanced firewall according to the official wiki and found out that the Fasttrack counter to be less than the firewall entry counter.
3I210 passthrough NIC and 2VirtIO NIC.
One I210 is for WAN PPPoE connection, other 2I210 and 2VirtIO nic are bridged.
Is this as expected?

/interface bridge
add admin-mac=5A:37:E5:7A:23:B1 auto-mac=no comment="defconf: Local Bridge" name=bridge1

/interface bridge port
add bridge=bridge1 interface=ether2
add bridge=bridge1 interface=ether3
add bridge=bridge1 interface=ether4
add bridge=bridge1 interface=ether5

/ip firewall filter
add action=fasttrack-connection chain=forward comment="defconf: fasttrack" connection-state=established,related disabled=no
add action=accept chain=forward comment="defconf: fasttrack accept established,related" connection-state=established,related disabled=no

/queue type
add cake-diffserv=diffserv4 cake-flowmode=triple-isolate cake-memlimit=32.0MiB cake-rtt=60ms cake-overhead-scheme=ethernet cake-nat=no kind=cake name=cake_rx
add cake-diffserv=diffserv4 cake-flowmode=triple-isolate cake-memlimit=32.0MiB cake-rtt=60ms cake-overhead-scheme=ethernet cake-nat=yes kind=cake cake-ack-filter=filter name=cake_tx

/queue tree
add comment="qosconf: download queue with cake" bucket-size=0.05 max-limit=500M name=cake_download packet-mark=no-mark parent=bridge1 queue=cake_rx
add comment="qosconf: upload queue with cake" bucket-size=0.03 max-limit=50M name=cake_upload packet-mark=no-mark parent=pppoe-out1 queue=cake_tx

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