关于react-router-dom下的NavLink的一个困惑

#1

一周前写的Component

    import React,{Component} from 'react';
    import {NavLink} from 'react-router-dom';
    import store from 'store/index.js';
    class Nav extends Component{
    	constructor(props){
    		super(...arguments);
    		var type = this.props.type
    		this.state = {
    			color:store.getState().color,
    			count:store.getState().memberInfo[type],
    		}
    	}
    	componentDidMount(){
    		store.subscribe((a,b)=>{
    			this.setState({
    				color:store.getState().color
    			})
    		})
    	}
    	render(){
    		const {url,ico,title} = this.props;
    		const {color,count} = this.state;
    		return (
    			<NavLink to={url} rel="nofollow" activeStyle={{color:color.bgColor,borderColor:color.bgColor,backgroundColor:color.underBg}}>
    				<i className={"tbzico "+ico}/><span className="subtitle">{title}</span>
    				<span className="count" style={{color:color.fontColor,backgroundColor:color.bgColor}}>{count}</span>
    			</NavLink>
    		)
    	}
    }
    export default Nav

问题是connect()()包装以后navlink的activeStyle不会更新，猜测是英文connect的shallow compare,所以我的代码里面没用connect,
但是昨天做性能检测时，这块的开销太大了,求指点迷津

#2 
import React,{Component} from 'react';
import {NavLink} from 'react-router-dom';
import store from 'store/index.js';
class Nav extends Component{
	constructor(props){
		super(...arguments);
		var type = this.props.type
		this.state = {
			color:store.getState().color,
			count:store.getState().memberInfo[type],
		}
	}
	componentDidMount(){
		store.subscribe((a,b)=>{
			this.setState({
				color:store.getState().color
			})
		})
	}
	render(){
		const {url,ico,title} = this.props;
		const {color,count} = this.state;
		return (
			<NavLink to={url} rel="nofollow" activeStyle={{color:color.bgColor,borderColor:color.bgColor,backgroundColor:color.underBg}}>
				<i className={"tbzico "+ico}/><span className="subtitle">{title}</span>
				<span className="count" style={{color:color.fontColor,backgroundColor:color.bgColor}}>{count}</span>
			</NavLink>
		)
	}
}
export default Nav`预格式化文本`