Yes, exactly. The VX3 will give up a little bottom end to pick up some top end in comparison to an M cam or T cam. That's generally how camshafts work, they give up one end to increase the other if no other mods are performed. If you advance the VX3 some more, and/or try looser valve clearances, it could pick up some more bottom end torque. It may not be enough for your liking, though.
The T cam has less duration and overlap than any other factory camshaft so it will produce the MOST dynamic compression of all the factory camshafts. This means, if you don't change anything else, you will pick up more low end torque by swapping in a T cam than any other factory camshaft. Assuming you don't run into detonation problems(you won't with a stock B230).
If you want a larger camshaft to work well at low rpm, you need to pick it wisely and then also increase the static compression ratio to keep the dynamic compression ratio similar(or higher). Or change ignition timing.
Here's what the T cam did for my 1987 244 automatic. First time slip is with the M cam, second is the T cam. Only go fast part was an adjustable cam gear, otherwise, power came from adjusting the valves to .012/.014", advancing the ignition timing 4 degrees(or was it 6?), retarding the cam 4 degrees, running premium gas and repurposing the preheat hose/opening for some fresh cold air in the front spoiler. Otherwise it's just a light DL with 147k on it.
M cam:
T cam:
Car picked up three tenths and 1.5mph even though it didn't feel faster aside from a little extra torque off the line.
If you're racing around the city streets with an automatic redblock equipped car and you don't want to pull the head for higher compression, slap a T cam in for more torque with some tight valves and retard it to let it pull longer!