使用Angular提供的OnPush变更检测策略优化性能。具体实现方法如下：

1. 在Component中设置变更检测策略：

import { Component, ChangeDetectionStrategy } from '@angular/core';

@Component({
  selector: 'my-component',
  templateUrl: './my-component.component.html',
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class MyComponent {}

2. 在HTML中，使用纯管道PurePipe：

3. 如果表格数据更改，而且你需要手动更新，请使用detach和reattach方法:

import { Component, OnInit, ViewChild, ChangeDetectorRef } from '@angular/core';
import { DatatableComponent } from '@swimlane/ngx-datatable';

@Component({
  selector: 'my-component',
  templateUrl: './my-component.component.html',
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class MyComponent implements OnInit {
  @ViewChild(DatatableComponent) table: DatatableComponent;

  rows = [];

  constructor(private cdr: ChangeDetectorRef) {}

  ngOnInit() {
    // some code to populate rows
    // ...

    // detach and reattach table to manually update view
    this.table.rowTracking = (index, row) => row.id;
    this.table.detach();
    this.rows = newRows; // update rows
    this.table.reattach();
    this.cdr.detectChanges(); // run change detection for the entire component
  }
}