How to remove Kernel extensions, Slow Restart 10.7.5, Should I really upgrade to 10.9?

Hello everyone, after spending a few days reading various posts about similar topics, here is a breakdown of my question:
(I made a Time Machine backup on an external HD, even though EtreCheck says "Not Configured")
1: I used EtreCheck to diagnose my laptop, and I do not know how to locate the Kernel Extensions in the computer to eliminate them, or "solve" them. Can I find them with Finder? If so, do I just delete the files? How else can I pinpoint the issues EtreCheck shows me?
2: I am experiencing the "15 second waiting period" with the gray spining wheel when I restart, which only started happening about three weeks ago.
3: After multiple attempts, it seems that Mavericks 10.9 is finally downloading from the App Store, but I would rather not upgrade if I don't need to, since 10.7.5 has been working well until now.
MAINLY, this is important to me since I am using Abelton Live 9 with a new 64-bit Saffire Pro-14 firewire audio interface, and it has started clicking during playback, which cannot be solved with buffering/latency fixes. This is the main reason I got this laptop (for audio production) and I want to make sure it continues to function at the highest level for that purpose.
To be clear, I have not experienced a "kernel panic" that requires me to shut down... I am simply trying to maintain my system for optimal performance by deleting problem files.
Thanks to anyone who can give me some basic daemon/kernel hunting instructions.
Here is the EtreCheck report:
Hardware Information:
 MacBook Pro (13-inch, Late 2011)
 MacBook Pro - model: MacBookPro8,1
 1 2.8 GHz Intel Core i7 CPU: 2 cores
 8 GB RAM
Video Information:
 Intel HD Graphics 3000 - VRAM: 512 MB
Audio Plug-ins:
 iSightAudio: Version: 7.7.1 - SDK 10.7
System Software:
 Mac OS X 10.7.5 (11G63b) - Uptime: 0 days 1:11:17
Disk Information:
 APPLE SSD TS128C disk0 : (121.33 GB)
 disk0s1 (disk0s1) <not mounted>: 209.7 MB
 disk0s2 (disk0s2) <not mounted>: 120.47 GB
 Recovery HD (disk0s3) <not mounted>: 650 MB
 MATSHITADVD-R UJ-8A8
USB Information:
 Apple Inc. FaceTime HD Camera (Built-in)
 Apple Inc. BRCM2070 Hub
 Apple Inc. Bluetooth USB Host Controller
 Apple Inc. Apple Internal Keyboard / Trackpad
 Apple Computer, Inc. IR Receiver
FireWire Information:
Thunderbolt Information:
 Apple, Inc. MacBook Pro
Kernel Extensions:
 at.obdev.nke.LittleSnitch (4050 - SDK 10.8)
 com.rogueamoeba.InstantOn (6.0.3 - SDK 10.6)
 tc.tctechnologies.driver.Saffire (4.1.3 17357 - SDK 10.6)
 com.rogueamoeba.InstantOnCore (6.0.3 - SDK 10.6)
 com.paceap.kext.pacesupport.snowleopard (5.9 - SDK 10.6)
Problem System Launch Daemons:
 [not loaded] ftp-proxy.plist
Problem System Launch Agents:
Launch Daemons:
 [loaded] at.obdev.littlesnitchd.plist
 [failed] com.adobe.fpsaud.plist
 [loaded] com.hidden.daemon.plist
 [loaded] PACESupport.plist
 [loaded] tc.tctechnologies.Saffire.plist
Launch Agents:
 [loaded] at.obdev.LittleSnitchUIAgent.plist
 [loaded] com.hp.messagecenter.launcher.plist
 [loaded] com.motu.MOTULauncher.plist
User Launch Agents:
User Login Items:
 iTunesHelper
3rd Party Preference Panes:
 DivX
 Flash Player
 Growl
Internet Plug-ins::
 FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6
 QuickTime Plugin: Version: 7.7.1
 Flash Player: Version: 11.9.900.170 - SDK 10.6
 OVSHelper: Version: 1.1
 DivXBrowserPlugin: Version: 2.2
 Silverlight: Version: 5.1.20913.0 - SDK 10.6
 JavaAppletPlugin: Version: 14.9.0 - SDK 10.7 Outdated! Update
Bad Fonts:
 None
Old applications:
 None
Time Machine:
 Time Machine not configured!
Top Processes by CPU:
 7% storeagent
 3% WindowServer
 2% EtreCheck
 2% mds
 2% Little Snitch Agent
Top Processes by Memory:
 369 MB firefox
 115 MB Photosmart_6510_series
 74 MB Finder
 66 MB mds
 49 MB WindowServer
Virtual Memory Statistics:
 5.56 GB Free RAM
 908 MB Active RAM
 439 MB Inactive RAM
 1.12 GB Wired RAM
 224 MB Page-ins
 0 B Page-outs

OS X upgrades don't cause problems, they reveal them. Every OS X upgrade since at least Jaguar has elicited complaints ranging from crashes, slowdowns, reduced battery life, everything short of an outbreak of hives. Most problems reported on this site are directly attributable to incompatible system modifications and poorly written or otherwise ill-conceived utilities. They exist in roughly the same proportion that have existed with every OS X upgrade since Jaguar, at least. Apple has no way to fix problems caused by software they did not develop and cannot control.
In your case, one definitely problematic system modification is the PACE anti-piracy app that does not appear to have been updated since Snow Leopard. I do not know what software you have that may require it, but it should either be updated or uninstalled before upgrading to Mavericks.
There are others that could be a concern including a launch daemon curiously named "com.hidden.deamon.plist". Well-written software should not be attempting to hide anything, but perhaps that was just an unfortunately chosen name. (Edit to add: read http://hiddenapp.com/support/installation/how-uninstall/ - it doesn't appear to have been updated for Mavericks either.)
If your boot time is excessive then an impending hard disk failure may be the cause. You must have a backup strategy, and rule out hardware failure as the possible cause of that symptom. If you have a backup strategy, then upgrading to Mavericks carries no risk whatsoever. If you don't like Mavericks, you can always restore your system from its backup. Merely having a backup often seems to preclude the need for it.
I upgraded many portable and desktop Macs of various ages and configurations. In every case not only was the upgrade completely uneventful, every Mac enjoyed quantifiable performance improvements. None of them have the notoriously problematic software or incompatible hardware modifications that seem to have caused others misery though. In broad terms those can be categorized as third party "anti-virus" or "security" junk, "cleaning" or "optimizing" utilities, any number of invasive Google services including Chrome, and similarly ill-conceived system hacks.
In your case the only potential concern with which I am familiar is PACE. Since I have no way of knowing what software you use I can only speculate what may require it, but I seem to recall PACE is or was used by Avid Pro Tools. Does that help?
Message was edited by: John Galt

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