Wifi detected but slow

Hi guys,

I just installed Kali Linux on my laptop but the wi-fi is slow. I tried many things during 2 hours to fix this problem but nothing changed so here I come and hope to see my savior.
Well, I didn't have this problem on Windows 10 or on Ubuntu so I don't know what happens. This is the configuration of my laptop and network.

LENOVO ThinkPad Edge E330
33541H0
Intel(R) Core(TM) i5-3230M
BIOS LENOVO H3ET72WW(1.09)Release Date: 02/25/2013
addedInformation
PCI is supported
PNP is supported
BIOS is upgradeable
BIOS shadowing is allowed
Boot from CD is supported
Selectable boot is supported
EDD is supported
3.5"/720 kB floppy services are supported (int 13h)
Print screen service is supported (int 5h)
8042 keyboard services are supported (int 9h)
Serial services are supported (int 14h)
Printer services are supported (int 17h)
CGA/mono video services are supported (int 10h)
ACPI is supported
USB legacy is supported
BIOS boot specification is supported
Targeted content distribution is supported
UEFI is supported
02:00.0 Network controller: Broadcom Limited BCM4313 802.11bgn Wireless Network Adapter (rev 01)

Ask me anything if you need more informations, I'm sorry I just put the basics because it's too slow when I ask a request.

Does anyone can help ? I've tried some solutions on the forum but didn't work.

How far are you from your access point? The optimal distance for connection & speed is about 10-15 feet. Anything nearby that could be causing interference (microwave, power transformer, etc)?

Any errors in the output of dmesg?

Thank you for your answer, I just found the solution. It wasn't about Ipv6, the grub, interferences... etc as some persons suggested on other posts in the forum, I thought it was something like that too but I add to download the driver of my network card manually and it fixed my problem.

For anyone with a similar network card, here is the solution :
https://wiki.debian.org/fr/wl

Have a nice day

No problem, glad you got it working :)