diff --git a/scrapy/extensions/logstats_extended.py b/scrapy/extensions/logstats_extended.py
index 7cba0dc2b..63703dace 100644
--- a/scrapy/extensions/logstats_extended.py
+++ b/scrapy/extensions/logstats_extended.py
@@ -14,26 +14,57 @@ class LogStatsExtended:
     """Log basic scraping stats periodically"""
 
     def __init__(
-            self, stats, interval=60.0, extended=False, ext_include=None, ext_exclude=None
+            self, stats, interval=60.0,
+            ext_stats_enabled=False,
+            ext_stats_include=None,
+            ext_stats_exclude=None,
+            ext_delta_enabled=False,
+            ext_delta_include=None,
+            ext_delta_exclude=None,
+            ext_timing_enabled=False,
+            ext_timing_include=None,
+            ext_timing_exclude=None,
     ):
         self.stats = stats
         self.interval = interval
         self.multiplier = 60.0 / self.interval
         self.task = None
-        self.extended = extended
         self.encoder = ScrapyJSONEncoder(sort_keys=True, indent=4)
-        self.ext_include = ext_include
-        self.ext_exclude = ext_exclude
+        self.ext_stats_enabled = ext_stats_enabled
+        self.ext_stats_include = ext_stats_include
+        self.ext_stats_exclude = ext_stats_exclude
+        self.ext_delta_enabled = ext_delta_enabled
+        self.ext_delta_include = ext_delta_include
+        self.ext_delta_exclude = ext_delta_exclude
+        self.ext_timing_enabled = ext_timing_enabled
+        self.ext_timing_include = ext_timing_include
+        self.ext_timing_exclude = ext_timing_exclude
+
 
     @classmethod
     def from_crawler(cls, crawler):
         interval = crawler.settings.getfloat("LOGSTATS_INTERVAL")
-        extended = crawler.settings.getbool("LOGSTATS_EXTENDED_ENABLED")
-        ext_include = crawler.settings.getlist("LOGSTATS_EXTENDED_INCLUDE", [])
-        ext_exclude = crawler.settings.getlist("LOGSTATS_EXTENDED_EXCLUDE", [])
+        ext_stats_enabled = crawler.settings.getbool("LOGSTATS_EXT_STATS_ENABLED")
+        ext_stats_include = crawler.settings.getlist("LOGSTATS_EXT_STATS_INCLUDE", [])
+        ext_stats_exclude = crawler.settings.getlist("LOGSTATS_EXT_STATS_EXCLUDE", [])
+        ext_delta_enabled = crawler.settings.getbool("LOGSTATS_EXT_DELTA_ENABLED")
+        ext_delta_include = crawler.settings.getlist("LOGSTATS_EXT_DELTA_INCLUDE", [])
+        ext_delta_exclude = crawler.settings.getlist("LOGSTATS_EXT_DELTA_EXCLUDE", [])
+        ext_timing_enabled = crawler.settings.getbool("LOGSTATS_EXT_TIMING_ENABLED")
         if not interval:
             raise NotConfigured
-        o = cls(crawler.stats, interval, extended, ext_include, ext_exclude)
+        if not (ext_stats_enabled or ext_delta_enabled or ext_timing_enabled):
+            raise NotConfigured
+        o = cls(crawler.stats,
+                interval,
+                ext_stats_enabled,
+                ext_stats_include,
+                ext_stats_exclude,
+                ext_delta_enabled,
+                ext_delta_include,
+                ext_delta_exclude,
+                ext_timing_enabled,
+               )
         crawler.signals.connect(o.spider_opened, signal=signals.spider_opened)
         crawler.signals.connect(o.spider_closed, signal=signals.spider_closed)
         return o
@@ -48,17 +79,19 @@ class LogStatsExtended:
 
     def log(self, spider):
         data = {}
-        data.update(self.log_timing())
-        data.update(self.log_delta())
-        data.update(self.log_crawler_stats())
+        if self.ext_timing_enabled:
+            data.update(self.log_timing())
+        if self.ext_delta_enabled:
+            data.update(self.log_delta())
+        if self.ext_stats_enabled:
+            data.update(self.log_crawler_stats())
         logger.info(self.encoder.encode(data))
 
-
     def log_delta(self):
         num_stats = {
             k: v
             for k, v in self.stats._stats.items()
-            if isinstance(v, (int, float)) and self.delta_param_allowed(k)
+            if isinstance(v, (int, float)) and self.param_allowed(k,self.ext_delta_include,self.ext_delta_exclude)
         }
         delta = {k: v - self.delta_prev.get(k, 0) for k, v in num_stats.items()}
         self.delta_prev = num_stats
@@ -76,37 +109,24 @@ class LogStatsExtended:
         self.time_prev = now
         return {"time": time}
 
-    def log_time(self):
-        num_stats = {
+    def log_crawler_stats(self):
+        stats = {
             k: v
             for k, v in self.stats._stats.items()
-            if isinstance(v, (int, float)) and self.delta_param_allowed(k)
-        }
-        delta = {k: v - self.stats_prev.get(k, 0) for k, v in num_stats.items()}
-        self.stats_prev = num_stats
-        return {"delta": delta}
+            if self.param_allowed(k,self.ext_stats_include, self.ext_stats_exclude)}
+        return {"stats": stats}
 
-    def log_crawler_stats(self):
-        return {"stats": self.stats.get_stats()}
-
-    def delta_param_allowed(self, stat_name):
-        for p in self.ext_exclude:
+    def param_allowed(self, stat_name, include, exclude):
+        for p in exclude:
             if p in stat_name:
                 return False
-        for p in self.ext_include:
+        for p in include:
             if p in stat_name:
                 return True
-        if self.ext_include:
-            return False
-        else:
-            return True
+        return False
+
 
     def spider_closed(self, spider, reason):
-        data = {}
-        data.update(self.log_timing())
-        data.update(self.log_delta())
-        data.update(self.log_crawler_stats())
-        logger.info(self.encoder.encode(data))
-
+        self.log(spider)
         if self.task and self.task.running:
-            self.task.stop()
\ No newline at end of file
+            self.task.stop()