Synology has awful speeds

[Bestaflex 0]

Hi all,

I have an older synology 1511+ under DSM 6.2 and use the synocommunity version of deluge (docker is beyond my tech skills, tried and failed a few times).

When no vpn is connected in the network tab of the control panel i get my usual speeds around 30Mo/s (240mbps) but then when vpn is connected i can't for my life get over 6Mo/sec (48mbps).

Could someone please review what i did and hit me on the head with some advice ?

Setup :

I set up the openvpn through that guidemaking sure i use a low charge server (tried 1 server, country and region without noticeable change)

I opened a port on the air vpn website and reported it in deluge as describded in multiple forum threads unchecking lots of previously checked boxes


 

[reversevpn 9]

OpenVPN might just be too heavy for your synology NAS to do without sacrificing significant performance. Try wireguard instead.

[Bestaflex 0]

On 4/9/2026 at 10:07 PM, reversevpn said:

OpenVPN might just be too heavy for your synology NAS to do without sacrificing significant performance. Try wireguard instead.

Any guide or how to because it feels like wireguard and Synology are not natively liking each other.

All the guides i've found are docker or spk repacker (does not exist for 1511+) and seems to be done for incoming and not outgoing Edited ... by Bestaflex