Abysmal Async Performance on MCP Board

[dmnhack!sturgess at uunet.uu.net]

I would like to expand on the last question.  Our system is also getting
killed by async output.  We run a 3/180 with an ALM-1 (16 line MUX) and a
small number of users on screen-oriented programs.  Serial interrupts
appear to be the culprit.  We are working on the programs to optimize
their output, but that is clearly not enough.  My question is: does the
ALM-2 offer any improvement or are there any third party devices that can
offload the CPU a little better?