One figure caption to big in the first page of list of figures

Hi T J and welcome to TeX-SE.

I'm not sure I understood your question correctly.

If you have a very very ... very long caption and for some reason it must be very ... very long to describe your figure, BUT your don't want it to be very ... very long at the list of figure, then your may use the optional argument of the command caption to write a short version to be presented at the list of figures.

A MWE and a image follow.

documentclass{article}
usepackage{graphicx}
begin{document}
listoffigures
begin{figure}[h]
    includegraphics[width=0.1linewidth]{example-image-a}
    caption[short text]{text}
end{figure}
begin{figure}[h]
includegraphics[width=0.1linewidth]{example-image-b}
caption[another short text]{another text}
end{figure}
end{document}