diff --git a/kitty/fonts.c b/kitty/fonts.c
index 08796ad4c..d5f32d30d 100644
--- a/kitty/fonts.c
+++ b/kitty/fonts.c
@@ -587,7 +587,7 @@ num_codepoints_in_cell(Cell *cell) {
 static inline void
 shape(Cell *first_cell, index_type num_cells, hb_font_t *font) {
     if (group_state.groups_capacity <= 2 * num_cells) {
-        group_state.groups_capacity = MIN(100, 10 * num_cells);  // avoid unnecessary reallocs
+        group_state.groups_capacity = MAX(128, 2 * num_cells);  // avoid unnecessary reallocs
         group_state.groups = realloc(group_state.groups, sizeof(Group) * group_state.groups_capacity);
         if (!group_state.groups) fatal("Out of memory");
     }
@@ -791,7 +791,8 @@ render_groups(Font *font) {
     while (idx <= G(group_idx)) {
         Group *group = G(groups) + idx;
         if (!group->num_cells) break;
-        /* printf("1111111 idx: %u num_cells: %u num_glyphs: %u first_glyph_idx: %u first_cell_idx: %u\n", idx, group->num_cells, group->num_glyphs, group->first_glyph_idx, group->first_cell_idx); */
+        /* printf("Group: idx: %u num_cells: %u num_glyphs: %u first_glyph_idx: %u first_cell_idx: %u total_num_glyphs: %zu\n", */
+        /*         idx, group->num_cells, group->num_glyphs, group->first_glyph_idx, group->first_cell_idx, group_state.num_glyphs); */
         glyph_index primary = group->num_glyphs ? G(info)[group->first_glyph_idx].codepoint : 0;
         for (unsigned i = 1; i < MIN(arraysz(ed.data) + 1, group->num_glyphs); i++) ed.data[i-1] = G(info)[group->first_glyph_idx + i].codepoint;
         render_group(group->num_cells, group->num_glyphs, G(first_cell) + group->first_cell_idx, G(info) + group->first_glyph_idx, G(positions) + group->first_glyph_idx, font, primary, &ed);