Serious Sam Next Encounter hitching

[Sonomatic]

Having an issue with Serious Sam when enemies spawn in the game freezes for a moment and then continues, or sometimes just when playing (lesser hitch/freeze) Being Serious Sam things spawn in all the time so with the game jittering makes it pretty jarring to play. Is it a problem with my hardware, dolphin settings or the game? I don't think I saw this issue with gameplay I've watched on youtube.

Dolphin 5.0
Windows 10 64 Bit
AMD FX-6300 3.5 Ghz
AMD Radeon 7800 series
Corsair 8 GB DDR3 RAM
standard hard drive (not SSD)
Game running at 2x internal res and 2x antialiasing(setting the game to default resolution and enhancements off does not stop this from occuring)

(I'm aware my cpu is a little old, though i'd like to know what I should set dolphin to to make up for it if that is the problem), Thank you.

[Helios]

Sounds like shader compilation.

Download the latest development build

Graphics > General > Ubershaders > asynchronous (ubershaders)

[Sonomatic]

That did the trick, game wasn't doing that nearly as much when ubershaders was enabled, and completely eliminated when i checked compile shaders before starting, Thank you!