Make beamer-TikZ-animation faster

Question

Consider the following MWE:

\documentclass{beamer}
\usepackage{tikz}
\setbeamertemplate{navigation symbols}{}
\begin{document}
\foreach \n in {.5,.75,...,20}
{
    \begin{frame}
    \centering
        \transduration{.75}
            \begin{tikzpicture}
                \useasboundingbox (-1,-2) rectangle (1,1);
                \pgfmathsetmacro\limit{atan(.5/1.5)}
                    \draw[dashed] (0,.5) -- (0,-2);
%                   \pgfmathsetmacro\newangle{(\limit/(360))*2*3.14}
%                   \foreach \x in {0,-10,...,\limit}
%                   {
%                       \pgfmathsetmacro\angle{45*abs(sin(\n r))}
            \pgfmathsetmacro\angle{((e^(-.25*\n)*cos(2*\n r)))*30-90}
                \draw (0,0) -- (\angle:1.5);
            \fill[rotate=\angle] (-.5,0) -- (0,-1) -- (.5,0) -- cycle;
%               \fill[rotate around={(-.5*\angle:(\angle:1.5))}] ([xshift=-.1cm]\angle:1.5) -- ([yshift=-.1cm]\angle:1.5) -- ([xshift=.1cm]\angle:1.5) -- cycle;
            \fill[shift={(\angle:1.5)},red] (90+\angle:.5) -- (270+\angle:.5) -- (\angle:.7) -- cycle;
            \draw[fill=white] (\angle:1.5) circle(.5cm);
%                   }
            \end{tikzpicture}
\end{frame}
    }
    \begin{frame}{Hallo}
        Hallo, Welt!
    \end{frame}
\end{document}

Here is the output:

My question is: How can I encrease the transduration speed?

Answer 1

\transduration{...} takes as argument the time in seconds each slide is displayed, so the speed of your animation is

thus to increase the speed, you have to decrease the transduration of the slides. The lowest possible value is \transduration{0}, then the duration will just be the time your pdfviewer needs to render the next slide.