When working on Python, I noticed that Python is only useful for data science. I am looking for a programming language that:

• Is different in terms of paradigm(I used OO only in Python for data analysis, I want something that is a different paradigm to improve my coding skills)

• Is excellent at systems engineering

• Will enhance my Python projects and basically make Python better

• Has an excellent future, will skyrocket in terms of demand

• Is very performant, excellent performance

• Has a steep learning curve(it's because I want a simple language and an advanced language in my stack)

I found these two languages to fit my needs, and I need help choosing. Which would be better for me considering my needs