[hheir]

Connecting directly to my modem, I am getting 150 mpbs download, but through my router with dd wrt installed, I am getting download speeds ranging from 10-75 mbps. My upload is fine through both connections. I am using dd wrt v3.0-r37305. I haven't touched many settings besides a couple basic wireless settings after installing ddwrt, as well as installing yamon. Is there any way to return my download speeds to normal. I really like the functionality of this firmware, but my download speed is taking too much of a hit.

I have tried erasing nvram and rebooting using putty, but it did not make a difference.

[egc]

If this: https://www.smallnetbuilder.com/wireless/wireless-reviews/32110-d-link-dir-868l-wireless-ac1750-dual-band-gigabit-cloud-router-reviewed?limitstart=0 is your router it is reported to have a dual core Armv7 800 MHz CPU.
With Shortcut Forwarding Engine turned on (at Setup page) you should be able to get 500Mb/s
For testing disable yamon, disable QoS and of cours you have to test wired, basically test with default settings and SFE turned on

[hheir]