[xeroinfinity]

If the lifters are really weak and worn this Could make compresion low but its more likly the rings/piston or valves/valve springs.

Reason would be that if they are weak then they are not fully opening the valves.
So your vavle springs are what keeps them closed .
If they dont close fully, then it would have low comprs.

Do you have low oil pressure also ?
When doing your compresion test did you do it dry,
or with a few drops of oil in the cylinders?