Virtual thread sleep tests are failing due to excessive sleep times

Test: java/lang/Thread/virtual/ThreadAPI.java#default

STARTED ThreadAPI::testSleep8 'testSleep8()'
java.lang.RuntimeException: org.opentest4j.AssertionFailedError: Duration 5726ms, expected <= 4000ms ==> expected: <true> but was: <false>
at jdk.test.lib.thread.VThreadRunner.lambda$run$0(VThreadRunner.java:79)
at java.base/java.lang.VirtualThread.run(VirtualThread.java:305)
at java.base/java.lang.VirtualThread$VThreadContinuation.lambda$new$0(VirtualThread.java:177)
at java.base/jdk.internal.vm.Continuation.enter0(Continuation.java:327)
at java.base/jdk.internal.vm.Continuation.enter(Continuation.java:320)
Caused by: org.opentest4j.AssertionFailedError: Duration 5726ms, expected <= 4000ms ==> expected: <true> but was: <false>
at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55)
at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:40)
at org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:210)
at ThreadAPI.expectDuration(ThreadAPI.java:1459)
at ThreadAPI.lambda$testSleep8$93(ThreadAPI.java:1385)
at jdk.test.lib.thread.VThreadRunner.lambda$run$0(VThreadRunner.java:77)
... 4 more
FAILED ThreadAPI::testSleep8 'testSleep8()'

Test: java/lang/Thread/virtual/ThreadAPI.java#no-vmcontinuations

STARTED ThreadAPI::testSleep3 '[1] ThreadAPI$$Lambda/0x00000008011088b8@6ec50520'
java.lang.RuntimeException: org.opentest4j.AssertionFailedError: Duration 5562ms, expected <= 4000ms ==> expected: <true> but was: <false>
at jdk.test.lib.thread.VThreadRunner.lambda$run$0(VThreadRunner.java:79)
at java.base/java.lang.ThreadBuilders$BoundVirtualThread.run(ThreadBuilders.java:412)
Caused by: org.opentest4j.AssertionFailedError: Duration 5562ms, expected <= 4000ms ==> expected: <true> but was: <false>
at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55)
at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:40)
at org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:210)
at ThreadAPI.expectDuration(ThreadAPI.java:1459)
at ThreadAPI.lambda$testSleep3$78(ThreadAPI.java:1250)
at jdk.test.lib.thread.VThreadRunner.lambda$run$0(VThreadRunner.java:77)
... 1 more
FAILED ThreadAPI::testSleep3 '[1] ThreadAPI$$Lambda/0x00000008011088b8@6ec50520'