High choke and low CPU usage on server

[Jonzky]

I'm not sure whats causing this or this is even a fixable issue but I'm getting serious choke/networking issues as the player-count increases. At lower player counts (5 or so) choke stays between 5-15 and at 15+ it becomes a serious issue around 40-80 (and players ping start to spike). I suspect it could be an un-optimized map but I'm unsure how it'd relate back to a networking issue?

The server is a managed server from a UK provider (so bandwidth shouldn't be an issue), made it completely vanilla (no addons/lua scripts) and the choke issue persists - I've also tried a whole raft of different rate configurations with not noticeable difference and the one bellow is my current cfg.

At no point does the CPU usage become significantly high (it never goes above 80-90% and there are choke issues still when its on 20-40%) and loss is always at 0. - Checked via `stats`

(relevant parts of my current server.cfg and the server is 66 tick)

sv_parallel_packentities 0
sv_parallel_sendsnapshot 1
net_queued_packet_thread 1

net_splitpacket_maxrate 50000
sv_minrate 0
sv_maxrate 50000
sv_minupdaterate 10
sv_maxupdaterate 66

Any help would be appreciated.

[-XTC-]

Try changing your clients rate to 50000 by typing "rate 50000" in console. If that helps, set your sv_minrate to 50000. I believe the default rate variable is set to only 30000.
I'd recommend lowering your tickrate to 33 along with your cmdrate and updaterate.

[Jonzky]

[QUOTE=-XTC-;47982459]Try changing your clients rate to 50000 by typing "rate 50000" in console. If that helps, set your sv_minrate to 50000. I believe the default rate variable is set to only 30000.
I'd recommend lowering your tickrate to 33 along with your cmdrate and updaterate.[/QUOTE]

Thanks for the reply. Lowering the tickrate isn't really an option and no other servers seem to have this issue while running at 66, I did try the increasing the rates but it didn't have any effect.

As far as I can tell ragdolls (corpses) are causing loads of networking ans removing them mid-round significantly reduces the choke (though obviously this isn't a solution).

As far as I can see no other server have this issue at low player counts (like I do).