So, it's not a massive change, but as you've gone from a 720p to a 1080p panel.
Downloading the UK Manual and pulling the picture setting from it, below is all you have to play with looking at what's on offer
Picture Options
MENU → Picture → Picture Options → ENTER
When connecting a PC, you can only make changes to the Colour Tone.
Colour Tone: Adjusts the colour tone.
Warm1 or Warm2 will be deactivated when the picture mode is Dynamic.
Settings can be adjusted and stored for each external device connected to an input on the TV
Digital Clean View:
If the broadcast signal received by your TV is weak, you can activate the Digital Clean View feature to reduce any static and ghosting that may appear on the screen.
When the signal is weak, try other options until the best picture is displayed.
Auto Visualisation: When changing analogue channels, displays signal strength.
Only available for analogue channels.
When the INFO button is pressed, the signal strength bar is displayed. When bar is green, you are receiving the best possible signal.
MPEG Noise Filter: Reduces MPEG noise to provide improved picture quality
HDMI Black Level: Selects the black level on the screen to adjust the screen depth.
Available only in HDMI mode (RGB signals).
Film Mode: Sets the TV to automatically sense and process film signals from all sources and adjust the picture for optimum quality.
Available in TV mode and external input mode which supports SD (480i / 576i) and HD (1080i) except in when connected to a PC.
If the screen does not seem natural, change its option to Off / Auto1 / Auto2 in Film Mode.
Analogue Clean View (Analogue channels only) (Depending on the country and model): Reduces diagonal noise in picture caused by the crosstalk of signals.
LED Clear Motion (Depending on the country and model): Removes drag from fast scenes with a lot of movement to provide a clear picture.
It will be deactivated when the Picture Mode is set to Natural.
The screen may become slightly darker when you play LED Clear Motion
So, looking at the above, LED Clear Motion is there and you need to see whether you prefer one of the options. For everything else, I would say try Film Mode as this should switch everything off and allow the natural signal to remove all unwanted manipulations systems.