x vs y plot is painfully slow

[dzalf]

Der Nathan.

Thank you for putting this phenomenal app together.

I am having some issues with the plotting speed when using one of the values as the x-axis (time for instance).

Something like:

...
    Serial.print(t, 4);
    Serial.print("\t");
    Serial.println(abs(echem_res));
...

Disabling the t data values gives me a better speed.

Any idea why this could be happening?

Cheers