Can nice D code get a bit slow?

[Hipreme]

On Wednesday, 8 March 2023 at 10:49:32 UTC, Markus wrote:
> Hi, sorry for the broad and vague question. I have read in some 
> reddit post about benchmarks, that some code didn't use the 
> final keyword on methods in a sense that final would make it 
> faster, I believe.
>
> [...]

Don't bother with it. This kind of optimization is done when 
compiling with -O, and I really doubt about your bottleneck being 
that you're calling a virtual call. Wait when you actually need 
to optimize before making your code ugly.