Must FPS drops cause there is more cpu usage with demorec process

That's weird, where did you install Quake Live? Can you tell us your specs please?

PC specs:

i7 930 @ 2.80 GHz
6GB RAM
GTX 570 SLI
500 GB SSD

Quake Live is installed in C (SSD)

I don't notice any FPS drops, but everything feels different when a demo is recording than when it's not. Usually the sens feels lower, and there's "lag" kind of feel that is noticeable when you fire weapons. I usually have around 32ms, but with demos recording feels more like 50ms.

no one has experienced this?

I experience a tiny difference when recording, but it's nowhere near what you're describing.

It also has no effect on sensitivity.

Since your system is much faster than mine it should be negligible for you.

Yes XiomaraGel, I always have noticed lag when recording demos.
g_synchronousclients 1; has always made the game feel laggy on all hardware/.cfgs I have ever used.
With XiomaraGels spec's it's not just older PC's.
Recording demos adds input lag?

why would you use g_sync 1? that might have made sense in '99/2000, but surely not a day after that :\

In Q3 if I type \record ___ it say's to enable g_synchronousclients ?
Never did much recording myself because of this, always thought it had to be enabled to record, from shit out of date guides\posts I had read elsewhere, embarrassing brainfart detected.

Just found this bind that explains where I went wrong,

/bind <recordkey> "g_synchronousclients 1;record;g_synchronousclients 0"

/bind <stopkey> "stoprecord"

will add this later.

Im sure in QL there is still lag when recording though.
Thanks for making me look in to that ;)

jesus fuck... you SHOULD NOT TOUCH G_SYNC EVER. there's literally no reason to do so. you had to use this over a decade ago, but not today. no idea what q3 version you are currently using (...read between the lines), but besides the original post clearly says 'quakelive'.

use either autoaction or simply do /record demoname to record demos, eg.:

cg_autoaction "3" // auto record demo + screenshot
cl_demoRecordMessage "2" // small REC sign on the lower left

Thanks for your response, at least this clarifies there is definitively a a difference when recording a demo.

I'm not sure why I do feel a significant difference and handicapped when I record a demo. If I'm not recording the delay is way less and my accuracy is much better than when I'm recording... :(

i'm calling out placebo...

you have a monster setup compared to the game you are running. a demo recording without noticable fps drops can not change your sens or add some sort of unmeasurable delay to your input. no. fucking. way :X

nahh it's not placebo... the difference is noticeable, not huge, but definitively there.