[Samsung Galaxy Nexus] DR3W5K1:
Give these settings a try Metal. I'm underclocked [MENTION=3236017]920[/MENTION]000 and it's still buttery (Nephs settings I tweaked the governor and a few other things)

#!/system/bin/sh

# chmod -R 755 /system/etc/init.d

# wait for android os

until [ `pidof com.android.systemui` != "" ]; do

sleep 1

done;

sleep 20;

# disable sysctl.conf to prevent ROM interference

if [ -e /system/etc/sysctl.conf ]; then

mount -o remount,rw /system;

mv /system/etc/sysctl.conf /system/etc/sysctl.conf.fkbak;

mount -o remount,ro /system;

fi;

# Set Min Freq

echo "180000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq

echo "180000" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq

# Set Max Freq

echo "920000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

echo "920000" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_max_freq

# Screen Off Max Freq

echo "350000" > /sys/devices/system/cpu/cpu0/cpufreq/screen_off_max_freq

echo "350000" > /sys/devices/system/cpu/cpu1/cpufreq/screen_off_max_freq

# Screen On Min Freq

echo "180000" > /sys/devices/system/cpu/cpu0/cpufreq/screen_on_min_freq

echo "180000" > /sys/devices/system/cpu/cpu1/cpufreq/screen_on_min_freq

# Set dyninteractive Governor

echo "dyninteractive" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

echo "dyninteractive" > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor

# Set Governor Settings

chmod 664 /sys/devices/system/cpu/cpufreq/dyninteractive/*

echo "20000" > /sys/devices/system/cpu/cpufreq/interactive/above_hispeed_delay

echo "1" > /sys/devices/system/cpu/cpufreq/interactive/boost

echo "750000" > /sys/devices/system/cpu/cpufreq/interactive/boostpulse_duration

echo "98" > /sys/devices/system/cpu/cpufreq/interactive/go_hispeed_load

echo "525000" > /sys/devices/system/cpu/cpufreq/interactive/hispeed_freq

echo "350000" > /sys/devices/system/cpu/cpufreq/interactive/input_boost_freq

echo "0" > /sys/devices/system/cpu/cpufreq/interactive/io_is_busy

echo "25000" > /sys/devices/system/cpu/cpufreq/interactive/min_sample_time

echo "0" > /sys/devices/system/cpu/cpufreq/interactive/sampling_down_factor

echo "95" > /sys/devices/system/cpu/cpufreq/interactive/target_loads

echo "24000" > /sys/devices/system/cpu/cpufreq/interactive/timer_rate

echo "22000" > /sys/devices/system/cpu/cpufreq/interactive/timer_slack

# Set noop as governor

echo "bfq" > /sys/block/mmcblk0/queue/scheduler

# Set Read Ahead KB

echo "768" > /sys/block/mmcblk0/queue/read_ahead_kb

# General I/0 Tunables

echo "0" > /sys/block/mmcblk0/queue/add_random

echo "0" > /sys/block/mmcblk0/queue/iostats

echo "0" > /sys/block/mmcblk0/queue/nomerges

echo "0" > /sys/block/mmcblk0/queue/rotational

echo "2" > /sys/block/mmcblk0/queue/rq_affinity

# Set TCP Congestion Control to Illinois

/system/xbin/sysctl -w net.ipv4.tcp_congestion_control=illinois

# Set Colors

# Disable Safety

echo 0 > /sys/class/misc/colorcontrol/safety_enabled

# Trinity Gamma

echo "6" > /sys/devices/platform/omapdss/manager0/gamma

# Contrast

echo "-14" > /sys/module/panel_s6e8aa0/parameters/contrast

# Gamma Offset

echo "-6 0 8" > /sys/class/misc/colorcontrol/v1_offset

# Color Multiplier

echo "2000000000 2000000000 2650000000" > /sys/class/misc/colorcontrol/multiplier

# Misc Settings

# Enable Content Adaptive Brightness

echo "1" > /sys/class/backlight/s6e8aa0/acl_set

# Enable Fast Charge

echo "1" > /sys/kernel/fast_charge/force_fast_charge

# OC GPU to 512MHz

echo "1" > /sys/devices/system/cpu/cpu0/cpufreq/gpu_oc

echo "1" > /sys/devices/system/cpu/cpu1/cpufreq/gpu_oc

# Set Headphone Volume Boost to 1

echo "1" > /sys/devices/virtual/misc/soundcontrol/volume_boost

# Set High Performance Sound to Enabled

echo "1" > /sys/class/misc/soundcontrol/highperf_enabled

# Enable Dynamic FSYNC

echo "1" > /sys/kernel/dyn_fsync/Dyn_fsync_active

# Set Multicore Power Saving to 2

echo "0" > /sys/devices/system/cpu/sched_mc_power_savings

# Enabling Intelliplug

#echo "1" > /sys/module/intelli_plug/parameters/intelli_plug_active

# Enabling ECO Mode

#echo "0" > /sys/module/intelli_plug/parameters/eco_mode_active

# Set Minfree Values

chmod 664 /sys/module/lowmemorykiller/parameters/minfree

echo "2560,5120,25600,30720,24320,49920" > /sys/module/lowmemorykiller/parameters/minfree

# Disable u-ksm if kernel supports them

[ -e /sys/kernel/mm/uksm ] && echo 0 > /sys/kernel/mm/uksm/run && echo 0 > /sys/kernel/mm/ksm/run

exit 0