Why is the second WAN interface slow on Mikrotik?

Question

Mikrotik

Hello.
There are two Internet channels, one is PPPOE - "fast" ( wan1 ) with dynamic IP, the second is a dedicated line - "slow" ( wan2 ) with a range (/29) of static addresses.
It is necessary to configure so that all users access the Internet through wan1, and the servers I need through wan2, and in fact some services should be available from outside via white IP wan2.
There are no questions with wan1 , it connects and works, by default everyone goes through it.
wan2 - Created the required IPs in IP -> addresses , added a tagged route to IP->Routes . In IP -> Firewall -> Mangleconnection and route marking rules have been created. Added srcnat to IP -> Firewall -> NAT to forward to wan2.
From the servers, the tracer shows the correct route, via wan2 . Pings are excellent, no packet loss. However, it works extremely slowly, the speed is a few kilobits. But it works... If wan2 is made the default route, it starts working as expected.
I don’t know what to think anymore, I changed the settings a hundred times and this way and that. Can anyone come across something similar?

Answer 1

What does the traceroute utility show in Mikrotik?
Is the situation different on Klin's cars?
PS it is not obligatory to mark a route the main thing to set routing of subnets to the necessary hosts.