diff --git a/claasp/cipher_modules/report.py b/claasp/cipher_modules/report.py
index b1b36af6..648e4da4 100644
--- a/claasp/cipher_modules/report.py
+++ b/claasp/cipher_modules/report.py
@@ -653,30 +653,27 @@ def create_heatmap_subplot(self, i, graph_data, cipher_rounds):
         z_data = [x[32 * i: min(len(x), 32 * (i + 1))] for x in list(graph_data.values())]
         yrange = list(graph_data.keys())
         xrange = list(range(i * 32, 32 * (i + 1)))
-
+        fontsize = max(1, ceil(12//len(yrange)))
         heatmap = go.Heatmap(
             z=z_data, coloraxis='coloraxis', texttemplate="%{text}",
             text=[['{:.2f}'.format(float(y)) for y in x] for x in z_data],
-            textfont={'size': 12 // len(yrange)},
+            textfont={'size': 2*fontsize},
             x=xrange,
             y=yrange, zmin=0, zmax=1, zauto=False
         )
 
-        tick_step_x = 1
-        tick_step_y = 1
-
         layout_update = {
             f'xaxis{i + 1}': {
                 'tickmode': 'array',
-                'tickvals': list(range(i * 32, 32 * (i + 1), tick_step_x)),
-                'ticktext': [str(j) for j in range(i * 32, 32 * (i + 1), tick_step_x)],
-                'tickfont': {'size': 12 // len(yrange)}
+                'tickvals': xrange,
+                'ticktext': [str(j) for j in range(i * 32, 32 * (i + 1))],
+                'tickfont': {'size': 2*fontsize}
             },
             f'yaxis{i + 1}': {
                 'tickmode': 'array',
-                'tickvals': list(range(1, cipher_rounds + 1, tick_step_y)),
-                'ticktext': [str(j) for j in range(1, cipher_rounds + 1, tick_step_y)],
-                'tickfont': {'size': 12 // len(yrange)},
+                'tickvals': yrange,
+                'ticktext': [str(j) for j in range(1, cipher_rounds + 1)],
+                'tickfont': {'size': 2*fontsize},
                 'autorange': 'reversed'
             }
         }
@@ -810,61 +807,36 @@ def _produce_graph(self, output_directory=os.getcwd(), show_graph=False, fixed_i
                                 graph_data[i + 1] = [case[res_key][i]] if type(case[res_key][i]) != list else \
                                     case[res_key][i]
 
+
                             df = pd.DataFrame.from_dict(graph_data).T
                             if len(graph_data[1]) > 1:
                                 if case[
                                     'input_difference_value'] != fixed_input_difference and fixed_input_difference != None:
                                     continue
                                 num_subplots = int(ceil(len(graph_data[1]) / 32))
-                                num_graphs = ceil(self.cipher.number_of_rounds / 5)
-                                fig_list = []
-                                for n in range(num_graphs):
-                                    subgraph_data = {}
-                                    rounds = [i for i in
-                                              range(n * 5 + 1, min((n + 1) * 5 + 1, self.cipher.number_of_rounds))]
-                                    for r in rounds:
-                                        subgraph_data[r] = graph_data[r]
-                                    fig = make_subplots(num_subplots, 1)
-
-                                    fig.update_layout({
-                                        'coloraxis': {'colorscale': 'rdylgn',
-                                                      'cmin': 0,
-                                                      'cmax': 1}})
-                                    for i in range(num_subplots):
-                                        heatmap, layout_update = self.create_heatmap_subplot(i,
-                                                                                             subgraph_data,
-                                                                                             self.cipher.number_of_rounds)
-                                        fig.add_trace(heatmap, i + 1, 1)
-                                        fig.update_layout(layout_update)
-                                    fig_list.append(fig)
-
-                                if num_graphs > 1:
-                                    num_rows = ceil(math.sqrt(num_graphs))
-                                    complete_fig = make_subplots(rows=num_rows, cols=num_rows)
-
-                                    for i, sub_fig in enumerate(fig_list):
-                                        row = i // num_rows + 1
-                                        col = i % num_rows + 1
-
-                                        for trace in sub_fig.data:
-                                            complete_fig.add_trace(trace, row=row, col=col)
-                                else:
-                                    complete_fig = fig_list[0]
+                                fig = make_subplots(num_subplots, 1)
+
+                                fig.update_layout({
+                                    'coloraxis': {'colorscale': 'rdylgn',
+                                                  'cmin': 0,
+                                                  'cmax': 1}})
+                                for i in range(num_subplots):
+                                    heatmap, layout_update = self.create_heatmap_subplot(i,
+                                                                                         graph_data,
+                                                                                         self.cipher.number_of_rounds)
+                                    fig.add_trace(heatmap, i + 1, 1)
+                                    fig.update_layout(layout_update)
+
                                 if not show_graph:
-                                    if num_graphs > 1:
-                                        for i, sub_fig in enumerate(fig_list):
-                                            sub_fig.write_image(
-                                                f"{output_directory}/{it}/{out}/{res}/{res}_{case['input_difference_value']}"
-                                                f"_{i}.png", scale=20)
-                                    else:
-                                        complete_fig.write_image(
-                                            output_directory + '/' + it + '/' + out + '/' + res + '/' + str(
-                                                res) + '_' + str(case['input_difference_value']) + '.png', scale=20)
+
+                                    fig.write_image(
+                                        f"{output_directory}/{it}/{out}/{res}/{res}_{case['input_difference_value']}.png",
+                                        scale=20)
                                 else:
-                                    complete_fig.show(renderer='png')
+                                    fig.show(renderer='png')
                                     return
-                                complete_fig.data = []
-                                complete_fig.layout = {}
+                                fig.data = []
+                                fig.layout = {}
 
                             else:
                                 fig = px.line(df, range_x=[1, self.cipher.number_of_rounds],