diff --git a/doc/Doxyfile_CXX.in b/doc/Doxyfile_CXX.in
index 42522f867eb4..5026dc1656c7 100644
--- a/doc/Doxyfile_CXX.in
+++ b/doc/Doxyfile_CXX.in
@@ -204,7 +204,7 @@ FORMULA_FONTSIZE       = 10
 FORMULA_TRANSPARENT    = YES
 USE_MATHJAX            = YES
 MATHJAX_FORMAT         = HTML-CSS
-MATHJAX_RELPATH        = //cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5
+MATHJAX_RELPATH        = https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5
 MATHJAX_EXTENSIONS     =
 MATHJAX_CODEFILE       =
 SEARCHENGINE           = YES
@@ -323,7 +323,7 @@ PERL_PATH              =
 #---------------------------------------------------------------------------
 # Configuration options related to the dot tool
 #---------------------------------------------------------------------------
-CLASS_DIAGRAMS         = YES
+CLASS_DIAGRAMS         = NO
 MSCGEN_PATH            =
 DIA_PATH               =
 HIDE_UNDOC_RELATIONS   = NO
@@ -332,16 +332,16 @@ DOT_NUM_THREADS        = 0
 DOT_FONTNAME           = Helvetica
 DOT_FONTSIZE           = 10
 DOT_FONTPATH           =
-CLASS_GRAPH            = YES
-COLLABORATION_GRAPH    = YES
+CLASS_GRAPH            = NO
+COLLABORATION_GRAPH    = NO
 GROUP_GRAPHS           = YES
 UML_LOOK               = NO
 UML_LIMIT_NUM_FIELDS   = 10
 TEMPLATE_RELATIONS     = NO
 INCLUDE_GRAPH          = YES
 INCLUDED_BY_GRAPH      = YES
-CALL_GRAPH             = YES
-CALLER_GRAPH           = YES
+CALL_GRAPH             = NO
+CALLER_GRAPH           = NO
 GRAPHICAL_HIERARCHY    = YES
 DIRECTORY_GRAPH        = YES
 DOT_IMAGE_FORMAT       = svg