allods is more cpu-dependent than gpu dependent it seems
especially obvious at places where many players and /or mobs are
"graphics can be turned down"
but there is no option to disable loading of other players for example
so maybe the bottleneck is not your GPU but your CPU
but aside from all that there is also some problem in the gamecode / engine since i have seen YT lagging even on overclocked gamingrigs with top actual hardware in enthusiast-priceclass