throttle screen redraw via cooldown, setting 10/30 largely eliminates dropped bytes

html_orig/lang/en.php

@@ -42,8 +42,9 @@ return [
 	'term.buttons' => 'Button labels',
 	'term.theme' => 'Color scheme',
 	'term.parser_tout_ms' => 'Parser timeout',
-	'term.display_tout_ms' => 'Redraw timeout',
-	'term.fn_alt_mode' => 'Xterm Fn keys',
+	'term.display_tout_ms' => 'Redraw delay',
+	'term.display_cooldown_ms' => 'Redraw cooldown',
+	'term.fn_alt_mode' => 'SS3 Fn keys',
 
 	// terminal color labels
 	'color.0' => 'Black',

html_orig/pages/cfg_term.php

@@ -116,6 +116,12 @@
 		<span class="mq-no-phone">&nbsp;ms</span>
 	</div>
 
+	<div class="Row">
+		<label for="display_cooldown_ms"><?= tr('term.display_cooldown_ms') ?><span class="mq-phone">&nbsp;(ms)</span></label>
+		<input type="number" step=1 min=0 name="display_cooldown_ms" id="display_cooldown_ms" value="%display_cooldown_ms%" required>
+		<span class="mq-no-phone">&nbsp;ms</span>
+	</div>
+
 	<div class="Row checkbox" >
 		<label><?= tr('term.fn_alt_mode') ?></label><!--
 		--><span class="box" tabindex=0 role=checkbox></span>