Hi, good idea, don't dim your LED even it is dimmable
anything pass thru a dimmer, the power factor drops, even you max out dimmer, you can't get 100% brightness out of the LED
unless your LED is too bright and you have dim, then no choice.

looks like you going to spend money anyway.

one normal switch to replace the dimmer is about RM3 , labour maybe about 20 buck
or you change the dimmer to a more efficient dimmer, estimate about RM300

so change to a normal switch still cheaper way , you don't need a set of new wiring

hi, i am pretty sure is the same wiring , you just need to change from the dimmer switch to normal switch
and i am pretty sure you LED will be brighter.

1. maybe your dimmer not compatible with the LED light
>>> i think you change to normal switch , cannot dim will be a easier solve
>> if 2 LED to a switch, dimmer shouldn't have any problem, so i guess is not dimmer problem
2. voltage drop - i am assuming you loop the LED in series, is like switch to 1 to 2 to 3 to 4 back to switch
    what you should do is loop parallel , switch to 1 and back , switch to 2 and back etc  or use bigger cable if you do series
>>> yes, you need to spend a lot, i guess you better live with it or don't dim at all

3. don't loop too many units together, like 8 unit with 2 dimmer switches instead one 1
>>> same as above

sorry, best to save money is not to dim, unless you want to spend some money there
also if dim the Power factor PF will drop, mean the brightness will drop even you max out the dimmer
depends on the dimmer and driver, it could be as much as 15% - 20%