Option to use built-in AI...

[jui-feng]

What exactly do you mean by "lag"? And which AI causes it?

I tried AdmiralAI and Pathzilla w/ "10k CPU cycles"-setting and didn't notice any lags. Of course, the map was not that big and there were only about 400 vehicles total, but then I'm on a single-core 2,6ghz CPU.

[Rubidium]

I agree the lag is unacceptable with the NoAi in OTTD and needs to be addressed.

... by wozzar by decreasing the number of opcodes in Advanced Settings.

[TrueBrain]

Or change the 'building speed' of AIs to something else than VERY HIGH. That could even kill your CPU with the old AI

[maxorator]

I have just one question. Does OpenTTD compile the scripts into bytecode?

[Rubidium]

Yes, it does.