Public bug reported:

bcmwl-kernel-source driver on a BCM43142 card has a slow wifi connection
with a high latency, while the device works properly on Microsoft
windows. The result is that browsing is slow and online games lag.
Pinging the router also reports a much higher latency than that of other
devices (>70 ms instead of about ~1,5-2 ms).

Device: 
0d:00.0 Network controller [0280]: Broadcom Limited BCM43142 802.11b/g/n 
[14e4:4365] (rev 01)
Subsystem: Hewlett-Packard Company BCM43142 802.11b/g/n [103c:804a]
Kernel driver in use: wl
Package:bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu1
Uname: Linux 4.9.2-040902-generic x86_64
NonfreeKernelModules: wl
Architecture: amd64
CurrentDesktop: MATE
InstallationDate: Installed on 2016-06-02
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.1)
ProcEnviron:
 LANGUAGE=el
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=el_GR.UTF-8
 SHELL=/bin/bash

** Affects: bcmwl (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bcmwl

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https://bugs.launchpad.net/bugs/1655684

Title:
  Wi-FI connection is slow/unstable and has a high latency [14e4:4365]

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