Having issues where Wi-Fi will only get about 8-12Mbps on average on clean install?
Applicable to all but this was with a Dell XPS, Intel Wi-Fi.
Test before: fast.com
Add the following two lines to wifi config
options iwlwifi bt_coex_active=0 swcrypto=1 11n_disable=8
options iwlmvm power_scheme=1
Test after: fast.com
Source Ref: https://wiki.debian.org/iwlwifi