As I don't have any problems with dude, even on 6.48.1 it runs fine om my RB750Gr3.
Probing not to many devices here, about 70 in several vlans and several L3 networks.
Perhaps it is time to compare hardware ?
where are you running dude on ?
did you check /tools/profile ?
How many devices are you probing ?
Did you file ticket to email@example.com
As this is a user forum, you really need to file a ticket to get things fixed.
Running 6.48.1 (stable) on :
CCR1009-8G-1S (2x ipsec/l2tp site-to-site, ipsec/l2tp roadwarrior, dhcpd, dns), CRS125-24G-1S, RB1100, RB962UiGS-5HacT2HnT (10pc), RB931-2nD, RB951, RB750GL ,RB2011UAS-RM, PWR-LINE-AP, RB750Gr3 running dude