New Dimmer 5508D1D ramping rate slow compared to old dimmer

Had a client with old dimmer failure, swapped for new 5508D1D but compared to like for like the same channel seems to react slow to a turn on. Wait time to start ramping up.
I know theres a manual which I have digested well. Anyone seen a simillar issue, is it a set up issue.
If I press the channel override it reacts the same slow ramp up so its not outside the dimmer unit.

 

By default, all dimmer channels are set to Load Detection Mode.
This is what is probably causing the slow ramp on. The instructions tell you what to do but not what happens if you don't (slow ramp on).

Copied from the instructions.
The process to confirm the mode is: Turn ON the channel by short pressing the channel button.

If the channel indicator stays Solid Yellow, then the load is compatible with TE mode. Confirm that the mode selection is correct by double-clicking the channel button. The indicator will flash yellow rapidly to confirm that TE mode is selected. The process is now completed for this channel.

If the channel indicator flashes slowly in Red, this means an iron-core load is detected. Change the channel to LE mode by pressing and holding the channel button for >10s. The channel indicator will flash Green rapidly to confirm that the LE mode is selected. The process is now completed for this channel.

If after changing to LE mode, the indicator continues to flash Red, the default dimmer load profile is not suitable with the connected load and needs to be customised using the SpaceLogic C-Bus Commission software

 

Yes Can Confirm this worked for me when i had the same issue.