摆动漆延迟？

Question

x=rand(96,1);
y=rand(96,1);
z=rand(96,1);

Ts=900;


t = 0:Ts:24*3600-Ts; %time in second
time = datestr(t/86400+datenum(2014,1,1)); %time starting at 2014/01/01

subplot(1,3,1)
ts_x = timeseries(x, time);
plot(ts_x)
datetick('x','HHPM')
ax = gca;
ax.XTickLabelRotation = 90;
set(gca,'fontsize',16)


subplot(1,3,2)
ts_y = timeseries(y, time);
plot(ts_y)
datetick('x','HHPM')
ax = gca;
ax.XTickLabelRotation = 90;
set(gca,'fontsize',16)


subplot(1,3,3)
ts_z = timeseries(y, time);
plot(ts_z)
datetick('x','HHPM')
ax = gca;
ax.XTickLabelRotation = 90;
set(gca,'fontsize',16)

}

好吧，我尝试用零知识来制作我可以画画的画笔，但问题是它跟不上鼠标的速度，它是否更新为慢？因为如果我画得更快就会有点，就像beetwen中的大空间一样......