perf: use fast api for io read/write sync (#15863)

```
$ dd if=/dev/zero bs=65536 count=500000 | ./stdio # C baseline

500000+0 records in
500000+0 records out
32768000000 bytes transferred in 4.126087 secs (7941664827 bytes/sec)
c: size 32768000000 reads 500000 blocksize 65536
```

```
$ dd if=/dev/zero bs=65536 count=500000 | deno run stdio.js # Deno

500000+0 records in
500000+0 records out
32768000000 bytes transferred in 4.279032 secs (7657806719 bytes/sec)
deno: size 32768000000 reads 500000 blocksize 65536
```

1 files changed, 8 insertions, 9 deletions

diff --git a/runtime/ops/io.rs b/runtime/ops/io.rs
index fd5b8a962..186052afe 100644
--- a/runtime/ops/io.rs
+++ b/runtime/ops/io.rs
@@ -16,7 +16,6 @@ use deno_core::OpState;
 use deno_core::RcRef;
 use deno_core::Resource;
 use deno_core::ResourceId;
-use deno_core::ZeroCopyBuf;
 use once_cell::sync::Lazy;
 use std::borrow::Cow;
 use std::cell::RefCell;
@@ -683,32 +682,32 @@ pub fn op_print(
   })
 }
 
-#[op]
+#[op(fast)]
 fn op_read_sync(
   state: &mut OpState,
-  rid: ResourceId,
-  mut buf: ZeroCopyBuf,
+  rid: u32,
+  buf: &mut [u8],
 ) -> Result<u32, AnyError> {
   StdFileResource::with_resource(state, rid, move |resource| {
     resource.with_inner_and_metadata(|inner, _| {
       inner
-        .read(&mut buf)
+        .read(buf)
         .map(|n: usize| n as u32)
         .map_err(AnyError::from)
     })
   })
 }
 
-#[op]
+#[op(fast)]
 fn op_write_sync(
   state: &mut OpState,
-  rid: ResourceId,
-  buf: ZeroCopyBuf,
+  rid: u32,
+  buf: &mut [u8],
 ) -> Result<u32, AnyError> {
   StdFileResource::with_resource(state, rid, move |resource| {
     resource.with_inner_and_metadata(|inner, _| {
       inner
-        .write_and_maybe_flush(&buf)
+        .write_and_maybe_flush(buf)
         .map(|nwritten: usize| nwritten as u32)
         .map_err(AnyError::from)
     })