Did you try to specify a mudfish node based on FAQ - Nodes rather than "Auto Selection" node mode for game item?

I tried everything it says there. But still sometimes my ping goes up by a lot. And its kinda annoying.

For most of cases it depends on which mudfish node you'd picked for ping.  Please check 'Status -> Nodes' menu carefully and see how RTT stddev is changing.  However which mudfish nod you tried?

Im using US Central (Dallas TX, Hudson Valley). Server of the game i play its located at Dallas Texas. About RTT stddev idk what that means, or how to check it.

Guess u mean this?  You can tell me if there something weird on the RTT cause i dont know.

This it's realteim traffic graph when there'e few (almost nothing) traffics on mudfish program.  So I don't think there's a game traffic on it because if it works properly, it should be just like a graph of How do I know if its working? section.

So, whats the problem if my graph looks like that? What is causing it, i can asure its working but its unstable cause i have lower ping sometimes and sometimes i dont. When i dont use mudfish i get allways high ping. So whats the problem and how can i solve it, if its possible?

If I read your graph properly, very few traffics are active on mudfish program side. So not sure that the game traffics are going through mudfish node.  Did you try to compare with or without Full VPN mode first?  I'm curious that even it's happening with that mode.

I was not using Full VPN mode, and heres the program setup as i had it all this time (Full VPN mod: Off). I will be trying Full VPN mode and see how it goes, will let you know results on the next reply about that.

So tired it for a bit with Full VPN (i checked and mudfish was working correctly, thats what the website myip one said) and i get this RTT.Hope it helps ^^

When I checked this graph, it seems you're running other processes causing network activities.  And too much traffics on mudfish side (based on Realtime Traffic). However with this, you can't check your RTT (Round Trip Time).  Please check 'Status -> Nodes' menu to see RTT average and RTT stddev (Standard deviation).  And please try to use a node whose RTT stddev is very stable.

Here's a screenshot of RTT stddev and i refreshed it 10 times in 30 min or so and i get that number u see on the screenshot. Is that okay or? i still feel a bit of spikes.

Nop.  It's not stable at all because as you can see, RTT stddev is 375.9 ms.  If it's stable, its value should be closer to 0 ms. :-(  Please try to use other mudfish nodes.