Your request is too vague.
Please give precisions.

It is becoming too slow

What is becoming slow ? Screen to configure workflow ? Other screens ?
Since when ? New upgrade, just adding workflows ?
How slow ? 3s to record, 10 s to record , 20mn to record ?
What is slow ? Display ? Record ? User getting bored ?
What is the context ? How many workflows ? How many statuses on each workflow ?

Dear Babynus,
sorry for the lack of information in my previous request.
In fact, we have till now 10 workflows and 47 status.
When we chose a workflow to configure it we have to wait a long time (about 2 minutes) with the loading icon on the screen before we can start working.
And the latency continue while working in the configuration (checking boxes,...).
Maybe if we can disable the graph it will go faster, if yes please give us a hint on how to do it.

On the graph section, you have on the right a parameter button.
This leads to selection of statuses, to limit view (and selection) to statuses that will be involved on current status.