New here, question about position sizing for illiquid assets

Hey everyone, just joined. Been trading equities and forex for a bit, mostly focused on $EURUSD and some larger cap tech. I'm starting to dabble a bit in some less liquid small-cap cryptos and micro-cap stocks, and I'm finding my usual risk-per-trade percentage doesn't quite translate. The bid-ask spread can be pretty wide, and getting out cleanly if a stop is hit seems like it could incur more slippage than I'm used to.

How do you factor in potential slippage or wider spreads when calculating your position size, especially if you're trying to stick to a strict 1% or 2% risk rule on highly illiquid assets? Do you just use a smaller percentage of your capital, or is there a more nuanced approach I'm missing?