diff --git a/internal/collector/memory/memory.go b/internal/collector/memory/memory.go
index eea64fd27..12bb2cac7 100644
--- a/internal/collector/memory/memory.go
+++ b/internal/collector/memory/memory.go
@@ -90,10 +90,6 @@ func (c *Collector) GetName() string {
 	return Name
 }
 
-func (c *Collector) GetPerfCounter(_ *slog.Logger) ([]string, error) {
-	return []string{}, nil
-}
-
 func (c *Collector) Close() error {
 	return nil
 }
diff --git a/internal/collector/mscluster/mscluster.go b/internal/collector/mscluster/mscluster.go
index e531ee54d..ebc3cad35 100644
--- a/internal/collector/mscluster/mscluster.go
+++ b/internal/collector/mscluster/mscluster.go
@@ -84,10 +84,6 @@ func (c *Collector) GetName() string {
 	return Name
 }
 
-func (c *Collector) GetPerfCounter(_ *slog.Logger) ([]string, error) {
-	return []string{"Memory"}, nil
-}
-
 func (c *Collector) Close() error {
 	return nil
 }
diff --git a/internal/collector/smtp/smtp.go b/internal/collector/smtp/smtp.go
index bdddfeb6c..5ac132e8f 100644
--- a/internal/collector/smtp/smtp.go
+++ b/internal/collector/smtp/smtp.go
@@ -135,10 +135,6 @@ func (c *Collector) GetName() string {
 	return Name
 }
 
-func (c *Collector) GetPerfCounter(_ *slog.Logger) ([]string, error) {
-	return []string{"SMTP Server"}, nil
-}
-
 func (c *Collector) Close() error {
 	c.perfDataCollector.Close()
 
diff --git a/pkg/collector/prometheus.go b/pkg/collector/prometheus.go
index ff5abbc92..169ce7fa7 100644
--- a/pkg/collector/prometheus.go
+++ b/pkg/collector/prometheus.go
@@ -29,7 +29,6 @@ type Prometheus struct {
 	collectorScrapeDurationDesc *prometheus.Desc
 	collectorScrapeSuccessDesc  *prometheus.Desc
 	collectorScrapeTimeoutDesc  *prometheus.Desc
-	snapshotDuration            *prometheus.Desc
 }
 
 type collectorStatus struct {
@@ -76,12 +75,6 @@ func (c *MetricCollectors) NewPrometheusCollector(timeout time.Duration, logger
 			[]string{"collector"},
 			nil,
 		),
-		snapshotDuration: prometheus.NewDesc(
-			prometheus.BuildFQName(types.Namespace, "exporter", "perflib_snapshot_duration_seconds"),
-			"Duration of perflib snapshot capture",
-			nil,
-			nil,
-		),
 	}
 }
 
@@ -90,13 +83,7 @@ func (p *Prometheus) Describe(_ chan<- *prometheus.Desc) {}
 // Collect sends the collected metrics from each of the MetricCollectors to
 // prometheus.
 func (p *Prometheus) Collect(ch chan<- prometheus.Metric) {
-	t := time.Now()
-
-	ch <- prometheus.MustNewConstMetric(
-		p.snapshotDuration,
-		prometheus.GaugeValue,
-		time.Since(t).Seconds(),
-	)
+	collectorStartTime := time.Now()
 
 	// WaitGroup to wait for all collectors to finish
 	wg := sync.WaitGroup{}
@@ -153,7 +140,7 @@ func (p *Prometheus) Collect(ch chan<- prometheus.Metric) {
 	ch <- prometheus.MustNewConstMetric(
 		p.scrapeDurationDesc,
 		prometheus.GaugeValue,
-		time.Since(t).Seconds(),
+		time.Since(collectorStartTime).Seconds(),
 	)
 }
 
diff --git a/tools/e2e-output.txt b/tools/e2e-output.txt
index a66326c96..7322f50a8 100644
--- a/tools/e2e-output.txt
+++ b/tools/e2e-output.txt
@@ -157,8 +157,6 @@ windows_exporter_collector_timeout{collector="tcp"} 0
 windows_exporter_collector_timeout{collector="textfile"} 0
 windows_exporter_collector_timeout{collector="time"} 0
 windows_exporter_collector_timeout{collector="udp"} 0
-# HELP windows_exporter_perflib_snapshot_duration_seconds Duration of perflib snapshot capture
-# TYPE windows_exporter_perflib_snapshot_duration_seconds gauge
 # HELP windows_exporter_scrape_duration_seconds windows_exporter: Total scrape duration.
 # TYPE windows_exporter_scrape_duration_seconds gauge
 # HELP windows_logical_disk_avg_read_requests_queued Average number of read requests that were queued for the selected disk during the sample interval (LogicalDisk.AvgDiskReadQueueLength)
diff --git a/tools/end-to-end-test.ps1 b/tools/end-to-end-test.ps1
index 2a5976ef0..e4d05fb07 100644
--- a/tools/end-to-end-test.ps1
+++ b/tools/end-to-end-test.ps1
@@ -18,7 +18,7 @@ mkdir $textfile_dir | Out-Null
 Copy-Item 'e2e-textfile.prom' -Destination "$($textfile_dir)/e2e-textfile.prom"
 
 # Omit dynamic collector information that will change after each run
-$skip_re = "^(go_|windows_exporter_build_info|windows_exporter_collector_duration_seconds|windows_exporter_perflib_snapshot_duration_seconds|windows_exporter_scrape_duration_seconds|process_|windows_textfile_mtime_seconds|windows_cpu|windows_cs|windows_cache|windows_logon|windows_pagefile|windows_logical_disk|windows_physical_disk|windows_memory|windows_net|windows_os|windows_process|windows_service_process|windows_printer|windows_udp|windows_tcp|windows_system|windows_time|windows_session|windows_perfdata|windows_textfile_mtime_seconds)"
+$skip_re = "^(go_|windows_exporter_build_info|windows_exporter_collector_duration_seconds|windows_exporter_scrape_duration_seconds|process_|windows_textfile_mtime_seconds|windows_cpu|windows_cs|windows_cache|windows_logon|windows_pagefile|windows_logical_disk|windows_physical_disk|windows_memory|windows_net|windows_os|windows_process|windows_service_process|windows_printer|windows_udp|windows_tcp|windows_system|windows_time|windows_session|windows_perfdata|windows_textfile_mtime_seconds)"
 
 # Start process in background, awaiting HTTP requests.
 # Use default collectors, port and address: http://localhost:9182/metrics