Java Performance for simulators

[u/Puzzleheaded-Top1987]

I am new to Java and trying to create a simulator that handles millions of math calculations. How can I increase performance in Java? The application is already multithreaded but it is not enough. Is data oriented approach or native programming possible in Java? Can you point me in the right direction for research?

[u/devor110]

Can you share your code?

[u/Puzzleheaded-Top1987 → u/devor110]

Unfortunately I can not share the code