How to fix small text in photoshop CS6

[Ldgraphics]

I have CS6 and the font its soooo tiny and un-smooth when creating a 18x24 poster with 300dpi! I always used 300 dpi in the past and never had this problem with the text being so small. . It does not matter which font I use It is super tiny and pixelated . I know there is a way to fix this because I did it a long time ago but I have forgot so I need some advice. I attached a Picture below of what the different font sizes look like.

[Sahil.Chawla]

Hi there,

That does not sound good, as the font is looking small, could you please let us know what type of monitor are you working on? Is it a high resolution monitor?

Could you try lowering the screen resolution and let us know if it helps?

Regards,
Sahil

[Ldgraphics]

I am working on a MacBook Pro 2015 laptop and never had this problem on it before. I never had problems on my 2018 Mac Pro either.

[Nancy OShea]

You probably have a high resolution display  Unfortunately CS6 is old software so it is not Hi-DPI aware.

Use your operating system's display settings to lower your screen resolution.  But increasing fonts  higher than 100% (normal zoom) could result in truncated panels.

[Semaphoric]

I'm assuming that's 18 x 24 inches, and that the job is for print? It should print OK. what does it look like if you View > Print Size?