Heat stress/overwatering??

Really struggling with this plant since moving it under a 2700k cfl 250watt

Lights out today day 9 from flip to 12/12 veg the girl for about 60 days because I didn't have any where for her to go due to a timing error lol
Anyway she sits in a 2x2x3 'so space is limited to say the least.

I changed the CFL for a LED SETUP due to heat " so now instead of 250watt cfl it's 450watts LED with a power draw of around 180 probrobly not enough for this wide plant with several tops from over topping lol , I loved this plant to the point of "OBESITY " LOL

I defiantly overwater her with 2 litre of tap water instead of the 1 litre every 3rd day but she hasn't looked perky for a few weeks now ?

Is it because thereally wasn't enough light from the CFL ro cover the plant?

This picture is from yesterday befor I waterd and changed the lights to LED
As you can see she looked the same befor I over water her so I'm not sure what's going on? May be temp's are playing there part along with her size may

maybe you know your temps? too high? adjust them now

Just finished installing the LEDs
'And already' girls are loving the light and cooler temp ,I've got the temp's down around 79f lights on and 69/70f lights off and already I have seen some changes for the good?

This plant is a real trooper ' because she went through some "SHIT" early on in veg ,firs being the top 2 branches were compleatly snapped off and un-repairable so the growth was stunted for ages whilst veging under a 125w at cfl.

Thank you for responding to my thread ' and advice an another of my grows would be great , I've noticed this RED RASH apearing on my leaves of a blueberry cross o have going at the moment in my flower tent.
She is 25 days from the flip to 12/12 and I have slowly watched this spreading??

Is it a MG dificency ?
I defiantly have been under feeding hence the light green leaves but she is due a flush in a few days