87 seems to run about 33% slower than 85. I realise you probably haven't speed optimised the code yet.

Hello.

You are right. SMath Studio 0.87 is sometimes 200-400% slower then 0.85, especially in graphs. This is a pay for stability in numeric calculations. I know how improve it and make it 400-800% (or even more) faster, but I need some time for this. Anyway, for now, SMath Studio is certainly a best release for all the time project exists.

Best regards.

Fixed. Performance of the 0.88 ver. will be similar with 0.85.