OSX Boot Manager and Mac Partition Extremely Laggy

I haven't reset the SMC as I read one of your posts stating - "SMC and NVRAM resets rebuild the hardware database and remove NVRAM parameters..... On 2015 and later Macs, the Windows boot-manager and BCD are stored in the Microsoft directory in the EFI partition. Didn't want to cause any harm.

EtreCheck version: 3.1.5 (343)

Report generated 2017-01-08 16:28:39

Download EtreCheck from https://etrecheck.com

Runtime 1:31

Performance: Excellent

Click the [Support] links for help with non-Apple products.

Click the [Details] links for more information about that line.

Problem: Other problem

Hardware Information:ⓘ

MacBook Pro (Retina, 13-inch, Early 2015)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro12,1

1 2.9 GHz Intel Core i5 (i5-5287U) CPU: 2-core

8 GB RAM Not upgradeable

BANK 0/DIMM0

4 GB DDR3 1867 MHz ok

BANK 1/DIMM0

4 GB DDR3 1867 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en0: 802.11 a/b/g/n/ac

Battery: Health = Normal - Cycle count = 114

Video Information:ⓘ

Intel Iris Graphics 6100

Color LCD 2560 x 1600

System Software:ⓘ

OS X El Capitan 10.11.6 (15G1212) - Time since boot: less than an hour

Disk Information:ⓘ

APPLE SSD SM0512G disk0 : (500.28 GB) (Solid State - TRIM: Yes)

[Show SMART report]

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / [Startup]: 150.35 GB (98.99 GB free)

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

BOOTCAMP (disk0s4) /Volumes/BOOTCAMP : 348.60 GB (236.41 GB free)

disk0s5 (disk0s5) <not mounted> : 472 MB

USB Information:ⓘ

Broadcom Corp. Bluetooth USB Host Controller

Thunderbolt Information:ⓘ

Apple Inc. thunderbolt_bus

Gatekeeper:ⓘ

Mac App Store and identified developers

System Launch Agents:ⓘ

[not loaded] 7 Apple tasks

[loaded] 165 Apple tasks

[running] 67 Apple tasks

System Launch Daemons:ⓘ

[not loaded] 45 Apple tasks

[loaded] 158 Apple tasks

[running] 87 Apple tasks

Launch Agents:ⓘ

[running] com.teamviewer.teamviewer.plist (2017-01-08) [Support]

[running] com.teamviewer.teamviewer_desktop.plist (2017-01-08) [Support]

Launch Daemons:ⓘ

[loaded] com.apple.installer.osmessagetracing.plist (2016-11-18)

[loaded] com.teamviewer.Helper.plist (2016-02-15) [Support]

[running] com.teamviewer.teamviewer_service.plist (2017-01-08) [Support]

User Launch Agents:ⓘ

[loaded] com.google.keystone.agent.plist (2016-08-24) [Support]

User Login Items:ⓘ

iTunesHelper Application (2017-01-02)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Internet Plug-ins:ⓘ

Default Browser: 601 - SDK 10.11 (2016-08-09)

QuickTime Plugin: 7.7.3 (2017-01-02)

3rd Party Preference Panes:ⓘ

None

Time Machine:ⓘ

Time Machine not configured!

Top Processes by CPU:ⓘ

4% WindowServer

2% fontd

2% kernel_task

0% cloudpaird

Top Processes by Memory:ⓘ

614 MB kernel_task

213 MB Google Chrome Helper(2)

164 MB mdworker(9)

131 MB Google Chrome

74 MB mds_stores

Virtual Memory Information:ⓘ

5.78 GB Available RAM

4.41 GB Free RAM

2.22 GB Used RAM

1.38 GB Cached files

0 B Swap Used

Diagnostics Information:ⓘ

Jan 8, 2017, 04:16:09 PM Self test - passed

Jan 8, 2017, 02:43:54 PM ~/Library/Logs/DiagnosticReports/com.apple.Safari.History_2017-01-08-144354_[re dacted].crash

/System/Library/PrivateFrameworks/SafariShared.framework/Versions/A/XPCServices /com.apple.Safari.History.xpc/Contents/MacOS/com.apple.Safari.History

Jan 8, 2017, 02:43:47 PM ~/Library/Logs/DiagnosticReports/com.apple.Safari.History_2017-01-08-144347_[re dacted].crash

There also no FW passward enabled. I also just realized that the mac side breaks even if I just try to reboot back into the mac side without messing with boot manager / boot camp. I have to do a PRAM reset any time I want to get into the mac partition. Even booting using command-R takes about 2 minutes to load recovery.

Disabling FileVault is an option, although I would imagine it would take quite some time to decrypt. Thoughts?

I disabled filevault. I still need to hold the option key during boot to get the boot manager to come up. I would say around 90 seconds. Also I now have "EFI Boot" as a drive that shows up on the boot manager screen. The keyboard input at that point is still laggy, however the mouse pointer does seem to respond normally. I can now boot into either partition and both work fine. So it seems the issue that remains is the lag issue in the boot manager. I have not done an SMC or NVRAM reset.

I changed the default to OSX and rebooted. No change. OSX will still boot OK, about a minute. If I reboot holding option, again it's about 2 minutes before boot manager loads. It also takes forever to boot into recovery. It used to be very snappy.

SMC reset with no change. Booting into single user and safe mode both take over 60 seconds to show the Apple logo. Again, once booted up it's fine. The only boot that is as fast as it used to be is the first boot after NVRAM reset.

No peripherals connected.

10.11.6. iTunes Helper is under login items for my account. I have not tried SMC or NVRAM resets. Didn't wan't to do more harm than good on accident.

This is my work laptop and I do not use iTunes on it.

FileVault is enabled in system prefs. It's not part of a domain, locally managed.

I don't recall turning FileVault on, but probably did when doing initial config. I can turn it off if all it does is encrypt the startup disk. Any other downside besides the security point?