The same problem, P1-perpetual license, VPS from the Zomro hoster - the traffic speed on the gigabit ethernet interface is no higher than 1.5 megabits, there are no such problems on version 6.49.13

That night, one 1100AHx4 hung. Winbox stuck at "logging in". Webfig - cannot authenticate, wrong user or password.
Work as PPTP VPN server and DUDE server

I have converted some pictures of various mikrotik equipment into SVG icons that can be used in Dude.
or download here