Losing steps on Y axis

Hello,
I've built a rebelix printer from foward3d printing using a8 motors, ramps 1.4 and tmc2100 stepper drivers. The printer begins printing well for the first layer or two than it seems when it starts doing infill it jumps steps on the Y axis mainly but has lost steps on X too.

The problem is more on the Y axis than X so I did the CFG1 wire to GND to put it in Spreadcycle to no avail.
The steppers are set to .95v as .75 was losing tons of steps.

Print speed is set to 60 mm/s using petg at 240c / 60c

I've lowered jerk and acceleration considerably from stock marlin 1.18.

I have another rebelix that I used the stock anet a8 setup and I have stock values and it's fine. So I dunno if the ramps 1.4 or the stepper drivers make it much more aggressive in movements but I'm lost..

Any help is appreciated

Sounds like the drivers are overheating.
There are different variants of TMC2100 out there, some require a jumper bridge soldered on the backside to make the CF1 mod work. But even then, they are a bitch to dial in the right Vref.