The heavy core block takes 35 seconds longer to break compared to Java's counterpart with your hand. This means it takes significantly longer to mine.

Steps to Reproduce

1. Place down a heavy core
2. Switch to survival mode
3. Break it with your hand and use a stopwatch to see how long it would take to break
4. Repeat the same steps on Java
5. Compare it

Observed Result
The heavy core took 50 seconds to break on Bedrock, which is 35 seconds longer than Java does.

Expected Result
The heavy core should take the same 15 seconds to break on Bedrock, in parity with Java.