Public build 2393a slowing down computer

Is it just me that think latest public build 2393a really slows down the computer?

I can’t even run safari and/or sublimeT3 without getting the “spinning ball” at the same time, I’d admit my mac isn’t really the newest computer but still with 2.8 Core2Duo, 8gig ram and an ssd things should run without issues right?

Is it the Composer that is eating my resources?

When I use build 2189 then I can have photoshop, browser and st3 running without noticing any lag in my system. 

Can you please drop us a build where we can shut off composer (if it’s the resource theif)?

Thanks.

lano78