Can confirm Mikrotik rb2011uias-2hnd-in can support 800Mbps over LAN after enabling the fasttrack. Thank you.

Sharing my humble setup.

onu alcatel lucent i240g
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mikrotik rb2011uias-2hnd-in with its wifi and lcd display disabled. use since unifi 20 era.
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tp-link TL-SG108E Easy Smart Switch. Got light indicator showing whether the speed is 10/100 or 1Gbps. 
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tp-link Archer C9 as access point, with all antenna replaced and the 3rd one extended to cover downstairs.
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full pic.
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Now I only need something to replace the C9 as the access point.