Changed the add_indent_latex part:
Since it's 1em for latex, 2em for HTML, for latex keep number of indent at increments of 1em and HTML at increments of 2em
diff --git a/R/add_indent.R b/R/add_indent.R
index adc4b18..86105f5 100644
--- a/R/add_indent.R
+++ b/R/add_indent.R
@@ -59,7 +59,7 @@
 }
 
 latex_indent_unit <- function(rowtext) {
-  paste0("\\\\hspace\\{",no_of_indent*2,"em\\}", rowtext)
+  paste0("\\\\hspace\\{",no_of_indent,"em\\}", rowtext)
 }
 
 # Add indentation for HTML