I have posted regarding this in the past and it still remains unresolved. I am reposting because I have done so much since then with no fix in site.

This is the issue:

I use hand break to change my phone recorded video converting it to 60FPS 1080p at 12000 kbps.

I import this file into power director. I set the presetting to 60fps in PD.

In the media library it plays fine (I have will include the video specs below along with my hardware sepcs).

When I drag it to the time line and play it the image stutters and chops like a maxheadroom effect. It is a kind of sputtering motion, not a lag per se.
This happens with or without the handbreak conversion, and with different video sources, tried phone, tab and PC webcam. I have also tried tweaking all kinds of aspect ratios, bitrates and fps with same bad results.

I have googled this to death and I cannot seem to resolve this.

Please help!

Video settings:

Type: H.264 AVC
Bitrate: 12.14 mbps
Resolution 1920X1080
Frame rate: 60 fps
Aspect Ratio: 16:9
Profile: Main Profile
Frame Type: Progressive

system Information
------------------

Operating System: Windows 10 Pro 64-bit (10.0, Build 17134) (17134.rs4_release.180410-1804)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: To be filled by O.E.M.
BIOS: F18 (type: UEFI)
Processor: Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz (8 CPUs), ~3.9GHz
Memory: 8192MB RAM
Available OS Memory: 8152MB RAM
Page File: 3502MB used, 23081MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Not Available
Microsoft Graphics Hybrid: Not Supported
DxDiag Version: 10.00.17134.0001 64bit Unicode