16 4age wont warm up

[Rice86]

car- ae86
engine - JDM RWD 16 4age

Issue - Car stopped warming up for the past 2 days
Car used to heat up to 85deg-90deg as shown on water temp gauge, not anymore
car does not pass 30deg in the morning, driving home after work *peak heat of the day* only brought temp up to 40deg-60deg

troubleshoot - Have replaced thermostat with brand new one
- Have flushed all coolant and bled water system to best of my knowledge and know how
- no water leaks anywhere
- radiator is not blocked or leaking or damaged

Comments - could it be the water pump?
-pulled off the top outlet hose from top water outlet that goes to top of jdm radiator.. water seems to be flowing out while car is on
but flow seems slow? water still wont get hot for thermostat to open
-when all hose are connected, there is now water flowing when looking into the radiator cap opening
- other then the idea of the water pump failing, i now am lost of what next to do
- the head of the engine still gets hot, not sure if hotter then usual
-could it be a sensor or something?

Pulling out of skidpan tomorrow as this needs to get sorted out before i blow a head-gasket or something worse