QVPN + OpenVPN Slow UL/DL Speed

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xfrex
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Posts: 6
Joined: Thu Apr 22, 2021 6:47 pm

QVPN + OpenVPN Slow UL/DL Speed

Post by xfrex »

Hi there,

I have a QNAP TS-230 setup as a VPN Server using QVPN + OpenVPN.

Unfortunately, I noticed that upload/download speed are very limited. I can upload around 2 MB/s and download at 3 MB/s. This is very bad, given that I have fiber connection on both my office and my home, and without the VPN setup I was able to UL/DL at 10/20MB/s... but you know, security!

Changing from AES 128 to AES 256 doesn't help.
NAS CPU usage is low, likely 10% during file transfer...

I would like to know if this is normal. I've read in other discussions that switching to L2TP/IPSec helped some users facing the same speed issues, but not all of them. Anyway, I'd like to keep OpenVPN.

Is there something I can do?
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spile
Been there, done that
Posts: 637
Joined: Tue May 24, 2016 12:13 am

Re: QVPN + OpenVPN Slow UL/DL Speed

Post by spile »

Speed was one reason I chose Wireguard (running on a Raspberry Pi)
https://vpnintel.com/insights/one-month ... an-openvpn
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